I think expanding the life to 100-130 years might be possible in next 20-30 years for people in private jet category. I don't think we can get to the point whe

I think expanding the life to 100-130 years might be possible in next 20-30 years for people in private jet category. I don't think we can get to the point where person can live over 90 years old and has his cognitive capabilities intact and here is why: If you hang around with old people in their 80's and 90's who are still exceptionally smart and have retained their faculties, you can still see how their cognition has changed. Brains might change only slightly after they reach their peak around 25, but we still carry the baggage of previously learned stuff. We don't have the so called "fresh eyes" anymore. We see our current situation filtered trough our past experiences and I think this emotional and cognitive crystallization just goes on even with fully healthy brain. Using machine learning terminology, human brain can't backtrack from previously learned and their learning bias only increases. If our brains only increase their bias and specialization over time, learning stuff that is outside that field becomes more difficult and we lose the ability to adapt to big changes that will happen.