Today I turn 45 years of age.

Overall, physically I do not feel much different from, say, 15 years ago. I consider myself lucky, since I am generally in good health. Never have I had to sleep in a hospital bed, not a single night. I will spare you a list of all the minor health problems I had in my life, but the list would be very short anyway.

Yet I know this is bound to change. 45 years of age is roughly the time when some of our physical faculties start to decline at a faster rate than in the previous 20 years. One of the sharpest changes which occurs at this age in most individuals is the loss of focusing ability at short distance: presbyopia, a loss of elasticity of the crystalline. I am just now starting to detect the first signs of that condition.

"The only use I know of a confidence interval is to have confidence in it"

L. J. Savage, in "The foundations of statistical inference", Methuen, London (1962).

"Lotteries are a tax on people who are bad at math"

Anonymous