I agree. Lots of studies seem focused on slightly slowing the accumulation of damage in our bodies over time, but this is a battle that can only be lost. Entropy always wins. What we need is tech to repair our bodies. The most promising candidate (in my uneducated opinion) is using gene editing to correct the mutations that accumulate in our genomes.
> It has been widely found that the volume of the brain and/or its weight declines with age at a rate of around 5% per decade after age 401 with the actual rate of decline possibly increasing with age particularly over age 70.
I feel like that's probably a big one without getting into the functional changes.
And just adding a bunch of neurons would probably be like giving your computer a new HDD. I think that the argument is about how it's important to preserve the information contained within the old neurons somehow.
