The skill in making coffee

Perhaps for the first time ever in life, I’m working in an office without a coffee machine. I don’t mind that so much for two reasons – firstly, having to go down 27 floors and then pay explicitly for a coffee means that my coffee consumption has come down drastically. Secondly, there is a rather liquid market of coffee shops around my office.

As you might expected, there is one particular coffee shop close to my office that has become my favourite. And while walking back with my flat white on Wednesday afternoon, I noticed that the coffee tasted different to the flat white I’d had at the same place the same morning.

Assuming that even artisanal coffee shops like that one are unlikely to change beans midway through the day, I’m guessing that the difference in taste came down to the way the coffee was prepared. Flat white involves some effort on behalf of the barista – milk needs to be steamed and frothed and poured in a particular manner. And this can vary by barista.

So this got me thinking about whether making coffee is a skilled task. And this might explain the quality of coffee at various establishments in Bangalore.

When the coffee bar is equipped with an espresso machine, the job of making an espresso involves less of a skill since all that the barista needs to do is to weigh out the appropriate quantity of beans, press it down to the right extent and then pop it into the espresso maker (I know these tasks themselves involve some skill, but it’s less compared to using a South Indian style filter, for example).

When you want milk coffee, though, there is a dramatic increase in skill requirement. Even in South Indian coffee, the way you boil and froth the milk makes a huge difference in the taste of the coffee. In Brahmin’s Coffee Bar in Shankarpuram, Bangalore, for example, the barista explicitly adds a measure of milk foam to the top of the coffee lending it a special taste.

And when it comes to “European” coffee, with its multiple variants involving milk, the skill required to make good milk coffee is massive. How much milk do you add.. How hot do you steam it.. Whether you add foam or not.. These are all important decisions that the barista needs to make, and there is a lot of value a good barista can add to a cup of coffee.

One of my biggest cribs about chain coffee shops in India is that the taste of the coffee isn’t particularly good, with hot milk coffees being especially bad. Based on my analysis so far, I think this could be largely a result of unskilled (or semi-skilled) and inexperienced baristas – something these chains have had to employ in order to scale rapidly.

The cold coffees in these places are relatively much better since the process of making them can be “fighterised” – for each unit, add X shots of espresso to Y ml of milk, Z ice cubes and W spoons of sugar and blend. The only skill involved there is in getting the proportions right, and that can be easily taught, or looked up from a table.

The problem with hot coffees is that this process cannot be fighterised – the precise way in which you pour the milk so that there is a heart shape on top of the cappuccino foam, for example, is a skill that comes only with significant practice. Even the way in which the milk is to be foamed is not an easily teachable task.

And that is the problem with chain coffee shops in India – lack of skilled labour combined with the need to scale rapidly has meant that people have tried to use processes to compensate for skills, and in most parts of coffee making, that’s not necessarily a good way to go.

How power(law)ful is your job?

A long time back I’d written about how different jobs are sigmoidal to different extents – the most fighter jobs, I’d argued, have linear curves – the amount you achieve is proportional to the amount of effort you put in. 

And similarly I’d argued that the studdest jobs have a near vertical line in the middle of the sigmoid – indicating the point when insight happens. 

However what I’d ignored while building that model was that different people can have different working styles – some work like Sri Lanka in 1996 – get off to a blazing start and finish most of the work in the first few days. 

Others work like Pakistan in 1992 – put ned for most of the time and then suddenly finish the job at the last minute. Assuming a sigmoid does injustice to both these strategies since both these curves cannot easily be described using a sigmoidal function. 

So I revise my definition, and in order to do so, I use a concept from the 1992 World Cup – highest scoring overs. Basically take the amount of work you’ve done in each period of time (period can be an hour or day or week or whatever) and sort it in descending order. Take the cumulative sum. 

Now make a plot with an index on the X axis and the cumulative sum on the Y axis. The curve will look like that if a Pareto (80-20) distribution. Now you can estimate the power law exponent, and curves that are steeper in the beginning (greater amount of work done in fewer days) will have a lower power law exponent. 

And this power law exponent can tell you how stud or fighter the job is – the lower the exponent the more stud the job!! 

Studs, fighters and spikes

In a blog post yesterday I talked about the marriage and dating markets and how people with spikes which can be evaluated either highly positively or highly negatively were more likely to get dates, while in the arranged marriage market, you were better off being a solid CMP (common minimum program).

The question is how this applies for jobs. Are you better off being a solid performer or if you are someone who has a quirky CV, with some features that can either be heavily positively or heavily negatively by some people. How will the market evaluate you, and which of them is more likely for finding you a job?

The answer lies in whether the job that you are applying for is predominantly stud or fighter (apologies to those to whom I mentioned I was retiring this framework – I find it way too useful to ditch). If it is a predominantly fighter job – one that requires a steady output and little creativity or volatility, you are better off having a solid CV – being a consistent 3 rather than having lots of 5s and 1s in your rating chart. When the job is inherently fighter, what they are looking for is consistent output, and what they don’t look for is the occasional 1 – a situation where you are likely to underperform for whatever reason. Fighter jobs don’t necessarily care for the occasional spike in the CV – for there is no use of being extraordinary for such jobs. Thus, you are better off being a consistent 3.

If it is a stud job, though, one where you are likely to show some occasional creativity, you are more likely to get hired if you have a few 5s and a few 1s rather than if you have all 3s. If the job requires creativity and volatility, what the employer wants to know is that you are occasionally capable of delivering a 5 – which is what they are essentially hiring you for. Knowing that people who are good at stud jobs have the occasional off day, employers of stud jobs are okay with someone with a few 1s, as long as they have 5s.

So whether you should be looking for a stud or a fighter job depends on what kind of a professional career that you’ve had so far – if you’ve had a volatile career with a few spikes and a few troughs, you are much better off applying for stud jobs. If you’ve been a steady consistent performer you are better suited for a fighter job!

Of course you need to remember that this ranking as a function of your volatility is valid only if you were to hold your “average rating” constant!

The deal with plays

I live near Basavanagudi in South Bangalore, hardly 6 km from the city’s best theatre Ranga Shankara. In the other direction, a (relatively) new auditorium which plays host to several promising plays (KH Kala Soudha) is even closer. There are times when we consider going for a play at one of these locations. To date, however, I’ve been to a performance (can’t call it a play) at KH Kala Soudha once. The only time I’ve been to Ranga Shankara was five years ago, back when i was in college.

I think one of the reasons for this is that I can never muster the necessary incentive to go watch a play. A large number of plays, as I understand, hold nothing much of promise in the stories that they tell. I’m not much of an actor, and don’t have an eye for fine acting which I want to discover. Yes, sometimes the way some stories are told is fantastic, and this is even more so when the play in question is telling a known story (the one play I’ve watched in Ranga Shankara was a Harivansh Rai Bachchan interpretation of Hamlet; where they use Yakshagana dancers for the play-within-a-play, and that was a fantastic way of telling the story).

Still, the thought of having to sit there in one place, without doing anything that might distract the performers, focusing all my energies on the performance, for the “option value” that there might be something really insightful in what the performers are trying to convey is daunting. With widespread sponsorship from governments and corporates, most plays are very reasonably priced, but the attention they demand can put me off.

And then I wonder if the reason I don’t like plays so much is because they’re rehearsed, that everything goes according to a particular script, that every move of the actor has been choreographed! The way plays are structured essentially requires discipline on part of all the actors, and the play could sometimes be seen as just an exhibition of discipline! I must mention here that I have even less patience for other more obvious exhibitions of discipline such as parades.

I read that the Rangashankara  festival is coming up soon, and I do hope I can get myself to at least check out a few plays (especially since I’m now fairly rich in terms of time). However, I must say it will take a lot of convincing on your part to make me come watch your play. If you say “we’re performing Shakespeare’s Romeo and juliet” I’ll say “why should I come watch you when I can read the play?”. But if you tell me that there’s a story that you want to say, which you’re going to say in a particularly unique way, then I might be interested.

Fighterization of Government

The problem with the proposed Jan Lok Pal bill is that it’s highly personality dependent. Given the kind of powers they want vested in the Lok Pal, it is clear that the proponents of this bill (Anna Hazare and co.) have simply assumed that a “good and incorruptible person” will occupy this post. What they don’t seem to have considered is that governments usually mess up in such appointments and it’s not guaranteed that a “good and incorruptible person” will always occupy this post. And that for that precise reason it’s dangerous to create an institution whose performance is highly dependent on the person occupying the post.

I’m reminded of two “high offices” to which people are appointed by the Central Government. Both these offices have gained prominence due to their occupation by high-quality people who did much to enhance the stature of this office, but have been undermined later by the government (UPA 1 and UPA2 in this case) appointing people with shady backgrounds to this post.

The first is the office of the Chief Election Commissioner. While this post has existed since the time of the first general election, the office was brought to prominence by former CEC TN Seshan. He was followed by a few other respectable gentlemen (James Michael Lyngdoh comes to mind). But then who did the UPA appoint to this post? Congress crony Navin Chawla, who in his earlier avatar as an IAS officer had been indicted by court as being “unfit to hold public office”.

The other case refers to the Central Vigilance Commissioner. By definition, this is a vigilance office and one of the implicit duties of this job is “vigilance”, which implies action against corrupt practices. You can think of this post as being a sort of a “mini Lok Pal” (for bureaucrats only, politicians being excluded). Again, when this post was created it was assumed that “honest impeccable incorruptible persons” would occupy it. And who did the UPA try to put there (before the Supreme Court struck down the appointment)? PJ Thomas, who had been indicted in a scam about 10 years ago.

There is no guarantee that people like Chawla or Thomas could come to occupy the post of the “lok pal”, which will completely undermine the purpose of the institution. I hope the thousands of people who are blindly supporting the “Jan Lok Pal bill” (and this includes you, Bharatiya Janata Party) take this little technicality to note. I exhort them to ask themselves if they’ll be ok having Navin Chawla or PJ Thomas as the Lok Pal. If they think it’s ok even if such people were to occupy the post, they can go ahead wiht their support. My assumption, though, is that most people haven’t really thought about this angle and are blindly supporting the anti-government agitations.

Coming to the title of this post, what we need is to create institutions that are not personality-dependent. We need to create institutions and systems with appropriate checks and balances such that even if people of “lesser integrity” were to occupy it, it wouldn’t be possible for them to significantly undermine the office. We need to effectively “fighterize” these posts in order to ensure that it’s not possible to sabotage them by means of a few bad men occupying them.

And the way I see it, the institution of the Lok Pal as envisaged by the Jan Lok Pal Bill (or by the government-sponsored bill for that matter) is highly personality dependent. And that is one of the reasons I’m opposed to this current Anna-Swami-Baba movement.

End of month blues

One of the problems with running your blog on your own website is that you need to manage bandwidth. Basically it seems like my blog has been run over by bots and so by the 25th of every month the bandwidth for the month is over, and the blog goes down for the rest of the month. I’ve been trying to do a lot of things to prevent this – blocking suspicious looking IPs, installing bad behaviour, and such like, but still I don’t know why it gets locked out.

My biggest problem with this end of month lockout is the volume of ideas that go down the drain during this time, rather than getting published on the blog. I wish I could try and remember all those blogging ideas and do one mega blog post at least with a summary of all of them, so that I could write about them at some point of time in the future, but it seems like I can’t remember anything now.

In other news, I’ve been getting really stressed out of late, and my mental bandwidth has been at an all time low. I’ve felt that I’ve been going downhill since my trip to New York a few months back, but of late it’s gotten really bad, and I’m just not able to do anything. That’s yet another reason why blogging frequency has dipped in the last couple of weeks or so.

Doing a deep dive into my own past, I think I’ve figured out why this has been happening. Rather, I have a hypothesis about why I’ve been stressing myself out too much at work which has led to this situation. Basically it’s down to studs and fighters.

I traditionally have what I call as a “stud” working style. I work in bursts, at reasonably low intensity. I look at the problem as a series of steps, and for each step, I internalize the problem, and then try to de-focus. And while thinking about something else, or reading something, or writing something else, I end up having a solution to the problem, and then I take a little break and move on to the next step. This is essentially how I’ve worked over the last few years and I think I’ve (to myself at least) done a good job using this method.

There’s yet another method that I’ve frequently used in the past, one that I call the Ganesha method. It’s basically used for tasks I want to get  done with ASAP. I work at it at a very high intensity, shutting myself off from everything else in the world. I work at it continuously without a break, and then take a long break once the solution is done. I’ve used it in the past for things like competitive exams where I think I’ve done rather well.

So the mistake I did a while back (maybe a year or so back) was to try and use this latter method over longer periods of time, for longer problems. The thing with this method is that it’s suited for short problems, which can be finished off in a burst with a little bit of stretching myself. But when applied to significantly larger problems, I’ve found that it’s been stressing me out way too much. By trying to be steady and focused over a long period of time, which is how a fighter traditionally works, I think I’ve mentally destroyed myself.

Moral of the story is that whatever happens you need to be yourself, and do things in your own style. Don’t try to change yourself in order to please others. It is simply not sustainable.

Managing stud work

I begin this post with an apology. About two years back I’d promised that I won’t write any more on Studs and Fighters on this blog, and I’ll save all that for my forthcoming book. Unfortunately, since then I’ve managed not more than one page of my book, and that too has been in the last couple of weeks. I realize that by not writing about studs and fighters here, I’m losing that perspective of thought entirely, because of which I’ve not been able to write my book.

So, Chom (a friend) raised an important point during a discussion earlier today. He said that people who are studs, after they become “managers” (in which case their job is solely to manage other people. Think of someone like a partner in a consulting firm), start angling for more fighter work for their team.  That they seem to forget all their studness, and assume that all the people they manage are fighters.

I had argued earlier that once the partner of a consulting firm stops doing day-to-day work, the quality of work at the firm suffers. This post is an extension of that. So what Chom says inherently makes sense. Here’s why.

Stud work is risky. There is a good probability that it may not be completed. So when your target changes from the “total impact of work done” to “number of pieces of work successfully completed” the whole equation changes. You are not looking for those “big wins” from your team, any more. What you need from your team is a high rate of delivery, and a large number of projects that are completed. If you get big wins, that is just a bonus. But all you care for now is the number of wins.

So you start taking on more fighter work, and letting go of stud work. After all, it is now rational for you to do that. Your own working style can sit aside.

Interview length

When I interviewed for my current job four months back, I was put through over twelve hours of high-quality interviews. This includes both telephonic and face-to-face processes (on one day, I was called to the office and grilled from 1030am to 630pm) and by “high quality”, I’m referring to the standard of questions that I was asked.

All the interviews were extremely enjoyable, and I had fun solving the problems that had been thrown at me. I must mention here that the entire process was a “stud interview” – one that tried to evaluate me on my thought process rather than evaluating what I know. I’ve also been through a few “fighter interviews” – ones where the interviewer just spends time finding out your “knowledge” – and I don’t remember taking a single job so far after passing this kind of an interview.

So recently I read this post by Seth Godin that someone had shared on Google Reader, where he says that there exists just no point in having long interviews and so interviews should be kept short and to the point. That way, he says, people’s time gets wasted less and the candidate also doesn’t need to waste much time interviewing. After reading that, I was trying to put my personal experience into perspective.

One thing is that in a “stud interview”, where you throw tough problems at the candidate, one of the key “steps” in the solution process is for an insight to hit the candidate. Even if you give hints, and mark liberally for “steps”, the “cracking” of the problem usually depends upon an insight. And it isn’t fair to expect that an insight hits the candidate on each and every question, and so the way to take out this factor is by having a large number of questions. Which means the interview takes longer.

The other thing about the length of the interview is signaling. Twelve hours of hardcore problem-solving sends out a signal to the candidate with regard to the quality of the group. It gives an idea to the candidate about what it takes to get into the group. It says that every person working in the group had to go through this kind of a process and hence is likely to be of high quality.

Another thing with the “stud interview” is that it also directly gives the candidate an idea of the quality of the people interviewing. Typically, hard math-puzzle based interviews are difficult to “take” (for the interviewer). So putting the candidate through this large number of math-problem-solving interviews tells him that the large number of people interviewing him are all good enough to take this kind of an interview. And this kind of interviews are also ruthless on the interviewer – it is usually not hard for a smart candidate to see through it if he thinks the interviewer has just mugged the answer to a question without actually solving it.

All put together, when you are recruiting for a job based on “stud interviews”, it makes sense for you to take time, and make the candidate go through several rounds. It also usually helps that most of these “stud interviews” are usually fun for the candidate also. On the other hand, if you are only willing to test what the candidate knows and are not really interested in the way he thinks, then you might follow Godin’s suggestion and keep the interview short.

Outliers – Notes

Last evening I borrowed Malcolm Gladwell’s Outliers from the library. Finished off reading it in one sitting this morning. I had been disappointed with his earlier book (The Tipping Point) and have been describing it as a blog post that has been written in 200 pages.

Outliers, on the other hand, is significantly better. For starters, there is a really nice narrative style which goes the book going. Having read the book, I still haven’t understood the central idea of it, but there are enough interesting sub-plots and side-fundaes that it’s worth reading. Some notes.

  • The second chapter of the book hints that you need to spend a considerable amount of time fighting it out at something before you become a stud in that. Gladwell claims there are no “natural studs” at anything, and people become studs at something only after reasonable effort. I think the key is on taking that step up to studness after you have put enough fight, and some people (pure fighters) don’t seeem to do that
  • There is tremendous non-linearity in the world, and this is a point that Nassim Taleb had also made in Fooled by Randomness. Basically, there are some discrete steps. For example, if I had applied the brakes even one second earlier, I could’ve prevented the car crash I was involved in this April. One extra mark here or there can change a candidate’s JEE rank by 500 places, and totally change his life. Etc.
  • Gladwell talks about “honor cultures” – where people tend to take offence easily. He claims that this kind of culture is more prevalent in pastoral communities where people need to be more aggressive and possessive. When I read about “honor cultures”, I was reminded of Rajasthan, and the Rajputs there going to war on one another on trivial “honour issues”, and Prithviraj Chauhan using “honour” as the excuse for supposedly pardoning Mohd Ghori in the first battle of Tarain in 1190. Was Rajasthan a traditionally pastoral society in those days?
  • The Power Distance Index that he talks about makes sense, but unfortunately India is not mentioned in the studies that he quotes. I would expect India to have a fairly high power distance index, but I’d also be interested in seeing if India’s PDI varies regionally – I would expect it to be higher in the north than in the south
  • A while back, I had written one reason as to why there doesn’t exist a strong breakfast culture in North India. Gladwell’s chapter on rice cultivation inspires an alternate reasoning. He claims that rice farming is much harder than wheat farming, and the former tends to take longer hours, and occupies a larger proportion of the year. Maybe due to the longer hours, south indians felt the need for three meals a day, while two were sufficient in the north. Also, rice digests quicker than wheat, so eating at more frequent intervals is warranted.
  • The epilogue, in which Gladwell talks about his mother’s family, gives an indcation about the “race system” in Jamaica. Compared to our caste system, which is discrete, Jamaican discrimination is on a continuous scale which has several shades of brown between black and white. Also, this continuous scale means that a child lies somewhere on the colour line between his father and his mother, and his standing in society is determined by his own colour. On the other hand, in the Indian caste system, rules dictate that the child belongs to either the father’s or the mother’s caste. Interesting to see how much of a difference this has made in general economic development.

I know a lot of this might not make sense to you if you haven’t read the book. I have just noted some headline points here. If you need more fundaes, leave a comment with your question and I’ll write about it.

And I would definitely recommend you to read the book. Nice quick read it is.

Studs and Fighters and Form

It’s been a long time since I wrote about the Studs and Fighters framework. I had overdosed on it a few months back, when I’d put some 3 posts in 4 days or something, but that was when I was hajaar enthu about corporate affairs.

It’s been almost two months since I quit my last job, and in this period, among other things I’ve lost all enthu for anything corporate. I don’t find Dilbert funny anymore. I usually just put well left to the office-politics posts that some of my friends on Google Reader share. And since the S&F theory was mainly meant to deal with corporate situations, that too has gone to the backburner.

I was thinking about Mitchell Johnson’s inclusion in the Aussie team in the Third Test. Given how badly he has been bowling all tour, and given that Stuart Clark hasn’t been bowling badly at all, it seems like a surprising selection. But dig deeper, and employ my favourite framework, and you’ll know why he’s still in the team.

It seems like Johnson is a stud bowler (as I’d remarked earlier, Test match bowling in general is stud). And the theory goes that form matters so much less for the stud. This is mainly because studs are significantly more inconsistent than fighters, which makes forecasting one data point based on historical data a nightmare. This also means that the last few data points say much less about a stud’s next data point than they do for a fighter’s case.

All that a stud needs to do to make amends for his hitherto bad form is to come up with one, or maybe a handful of moments of inspiration/insight. And that can happen any time. In fact, theory says that it is more likely to happen when the stud is defocussed on what needs to be done.

So even in the first couple of Tests, you could see Johnson occasionally coming up with the totally awesome delivery, which would produce wickets. Most of the time he was crap, but the occasional moments of brilliance were enough for him to make an impact. So the thinking in persisting with him is that sooner or later, he will produce enough moments of brilliance in a game that no one will look at all the crap he has bowled, and even that the moments of brilliance can push up his confidence which can lead to less crap.

This kind of thinking doesn’t apply to a traditional fighter, who isn’t capable of that “moment of brilliance”. He usually relies on consistency, and accuracy, and process to do what he needs to do. For the fighter, it has to be a steady rise from one “form situation” to another. And so persisting with the fighter doesn’t make sense. So for example, if Mike Hussey continues batting in the same way as he has been this series, there is a case of sending him to domestic cricket.

The problem with a lot of fighters is that they refuse to acknowledge the existence of studs and treat them too as fighters (on the other hand, most studs understand the existence of fighters). And this treatment of studs (assuming they are fighters) can have disastrous effects.