Which arguments are keeping the billionaire money from funding it stronger while the metformin trial study did get it’s money?
I guess one reason is that billionaires don’t have time to do their research in detail, to see for themselves whether de Grey and Sens are worthy, but rely on reputation and opinions of popular names in the field. And the reputation of SENS seems to have suffered a bit initially, when many scientists found their proposals for rejuvenation too bold or futuristic https://en.wikipedia.org/wiki/Aubrey_de_Grey#Criticism
Thanks, the way you have included links to possible laboratories and companies is great!