Seems like with technology, each of our life spans can be maximized. So if any organ fails, it can be replaced (or maybe preemptively replaced so it lasts longe

Seems like with technology, each of our life spans can be maximized. So if any organ fails, it can be replaced (or maybe preemptively replaced so it lasts longer). However, the biggest problem is going to be our brain cells. After 100-120 years, our brains are just about used up. Doubt its worth persisting much longer after that. Maybe in 500 years they'll figure out a solution to that, but I wont hold my breath.