The Switch

Cafe Coffee Day is among the most unromantic places to go on a first date, or so they say. But then you need to understand that the venue can do only so much when it comes to creating the right “atmosphere” for the date. So if you think you are yourselves capable enough of doing a good job of creating a good “atmosphere”, you don’t need to bother about trivialties such as how “romantic” a place is or how good it is in creating “atmosphere” and just pick a place that makes practical sense.

There has been so much of One Day International cricket of late that it is difficult to keep track of various series and tournaments. One tournament that similarly got lost, mostly because the ultimate result was unremarkable (Australia won yet again) was the Champions Trophy, which happened (I think) in South Africa. I don’t remember much of the tournament; I don’t think I watched much of it. All I remember was that there was a game where India played Australia, and that Australia batted first.

Seating arrangement plays an important factor on a first date. Optimal seating arrangement ensures the optimal arrangement of eye contact. Sitting beside each other means you need to put too much effort to establish eye contact, and that is way too much energy. Sitting opposite each other can lead to overexposure – if things aren’t going that well, it’s tough to keep looking into each other’s eyes and that can lead ot awkward moments. It might be interesting to do some academic research in this matter but my hunch is that for a first date a ninety-degree seating arrangement is optimal.

For a few months now I have been on a diet. It has not been without results – my weight has come down by almost a fourth in the last six months. I haven’t done anything drastic, just a set of simple principles. And one of them is “no sugar in coffee”. I’ve given up on tea altogether since I can’t have it without sugar. When you are on a date, however, it is not nice to show off that you are on a diet, especially if you are a guy. it doesn’t give a good picture. So a good strategy is to order something like espresso, which you can claim tastes best without sugar!

I think it was an appeal for LBW that triggered it, but I’m not sure. I do remember, however, that it was a strong appeal that was turned down, but I don’t remember the nature of dismissal. Ashish Nehra was bowling if I’m not wrong. I have no clue who was batting. Maybe it was Haddin, or was it Paine who was opening in that tournament? Not that it matters.

Onlookers might have thought that the move was choreographed given how well we executed it. I don’t even remember their being too much eye contact as it happened. I don’t remember there being any conversation about it as it happened. All I remember is that one moment I was being distracted by Ashish Nehra’s appeal, and the next I was sitting with my back to the TV, comfortably settled where she had been settled a moment earlier, with her having taken my original place.

And I remember that our coffees had also exchanged places along with us!

Moron Astrology

So this morning I was discussing my yesterday’s post on astrology and vector length with good friend and esteemed colleague Baada. Some interesting fundaes came out of it. Since Baada has given up blogging (and he’s newly married now so can’t expect him to blog) I’m presenting the stuff here.

So basically we believe that astrology started off as some kind of multinomial regression. Some of ancestors observed some people, and tried to predict their behaviour based on the position of their stars at the time of their birth. Maybe it started off as some arbit project. Maybe if blogs existed then, we could say that it started off as a funda session leading up to a blog post.

So a bunch of people a few millenia ago started off on this random project to predict behaviour based on position of stars at the time of people’s birth. They used a set of their friends as the calibration data, and used them to fix the parameters. Then they found a bunch of acquaintances who then became the test data. I’m sure that these guys managed to predict behaviour pretty well based on the stars – else the concept wouldn’t have caught on.

Actually it could have gone two ways – either it fit an extraordinary proportion of people in which case it would be successful; or it didn’t fit a large enough proportion of people in which case it would have died out. Our hunch is that there must have been several models of astrology, and that natural selection and success rates picked out one as the winner – none of the other models would have survived since they failed to predict as well on the initial data set.

So Indian astrology as we know it started off as a multinomial regression model and was the winner in a tournament of several such models, and has continued to flourish to this day. Some problem we find with the concept:

  • correlation-causation: what the initial multinomial regression found is that certain patterns in the position of stars at the time of one’s birth is heavily correlated with one’s behaviour. The mistake that the modelers and their patrons made was the common one of associating correlation with causation. They assumed that the position of stars at one’s birth CAUSED one’s behaviour. They probably didn’t do much of a rigorous analysis to test this out
  • re-calibration: another problem with the model is that it hasn’t been continuously recalibrated. We continue to use the same parameters as we did several millenia ago. Despite copious quantities of new data points being available, no one has bothered to re-calibrate the model. Times have changed and people have changed but the model hasn’t kept up with either. Now, I think the original information of the model has been lost so no one can recalibrate even if he/she chooses to

Coming back to my earlier post, one can also say that Western astrology is weaker than Indian astrology since the former uses a one-factor regression as against the multinomial regression used by the latter; hence the former is much weaker at predicting.