Real scientific advancement in longevity involves isolating specific beneficial or harmful blood components, not crude blood transfusions from young to old individuals.

“real life science is not done by taking blood from young people or and putting it into old people it's that's medieval science where it's a complex mixture of dozens to hundreds of potentially right but that could be the proof of principle right in other words you might start with that and no one thinks that if you do that experiment where you literally take blood out of an old person and discard it and take blood out of a young person and you know put it in and you get a favorable result nobody thinks that that's what's going to the FDA”