He says here that we will not live to 150 without merging with technology. Since rejuvenation already exists for worms, mice, and rats I see no reason why a person could not make it that long and longer.
In this video Sergey talks about his ideas for when we will reach Longevity Escape Velocity, his vision for the longer term and the implications for society as people live longer.
Sergey Young is a longevity investor and visionary on a mission to help one billion people extend their lifespans and live longer, healthier lives. To do that, Sergey founded Longevity Vision Fund to accelerate breakthroughs in life extension technology and to make longevity affordable and accessible to all.