Another thing that I noticed whilst travelling by train is the astonishing collision detection that people in general, but commuters especially, have. At london bridge station there is a sort of concourse section underground where about six different pathways meet - people are walking across it, at speed, in every direction.
but they almost never hit each other, or even have to break their stride. I don't think it's conscious - it isn't for me anyway - they just know: weaving between the streams, anticipating the next move of the confused tourist, steering around the determined businessman - never having to stop or slow down.
It's quite beautiful in a strange sort of way, it'd be even more so if I could get a decent vantage point to observe from, and the time in which to do it.
I was going to post something about the awesome play I saw tonight, in a church designed by Inigo Jones, but I'm really tired. I'll write about it tomorrow.