Larry is 71. He should be investing way more than this on life sciences research if he wants to move the needle on his own life span. Given his net worth, spending at least a billion a year is a no-brainer. The answer to spending that money effectively is really simple. Invest it in PhD scholarships. There is no better value for fundamental science ROI on the planet. $6 billion could buy him 100,000 new PhDs. Every single one could be working on figuring out how to extend his quantity&#x2F;quality of life. That&#x27;s ~10% of his net worth. It&#x27;s irrational for him to not do it.