According to Healthline, the average person blinksĀ between 14,400 and 19,200Ā times a day.
Using 15,000 blinks per day, you come out ahead with blinking after 3.65 years.Ā Of course this does not factor in the money made by investing 20 million, but I will gamble that I live long enough to cover the difference.Ā Also, I'd be just fine with $15,000 per day. . .