New Delhi, April 20 -- '

A few days ago, Bryan Johnson, a centi-millionaire who has spent millions on reversing ageing-especially his own-posted some bad news for humanity on his YouTube channel. Rapamycin, which for a long time has been the most promising molecule in our quest to prolong youth, was not making him younger; instead, it was "accelerating" his ageing.

Johnson, who is 47 and looks 46, conducts various experiments on himself in his effort to live like a young man for a very long time. I am counting on him. His food consumption is so calibrated that he knows the number of calories he has gulped. He does not eat after 11am, unless he has to meet people socially and must eat at ungodly hours like 7pm just to shut them up. He sl...