What if instead of anti-gravity, we examine medical treatment for diseases correlated with ageing? We place huge amount of money into research and treatments for cancer and cardiovascular diseases - these feel like band aids, since the root cause is usually senescence. Are curing (To whatever degree you like) these more attainable goals than slowing/stopping aging? Probably. Maybe. I don't know, but I'm not convinced this isn't a case of treating the symptoms, when we could attack the disease.