Sadhguru on the Delhi incident : [youtube https://www.youtube.com/watch?v=tuUOwg6Ay4A?rel=0]

“Waiting time” results are often paradoxical and counter intuitive. To illustrate using a simple example, here is the advertised schedule of train departures from of a Mumbai Local from Churchgate to Borivalli over a a 24 hour timeframe. The average inter-departure time between the trains appears to be ~ 6min from the graph on the right. However since it is a discrete distribution, one can easily compute the exact value by taking a weighted average.

Ernie Chan on backtesting : [youtube https://www.youtube.com/watch?v=2WZiGiy4l0Y?rel=0]

In Nov 2004, Frank Warren printed 3000 postcards inviting people to share their secret. He handed over these postcards at subway stations, art galleries, slipped them in between pages of library books. As the word spread, people were making up their own postcards and mailing them to Frank . As of today he has over half a million postcards from strangers all over the world.This book is an assorted collection of secrets from his vast database.

[youtube https://www.youtube.com/watch?v=igDsu5QWhpo?rel=0]