Doesn’t make sense from an evolution theory viewpoint to me.
If that has advantages to survival, there would have to be many survivors who have experienced this.
Also, I think shark story is different from this one. At no time, that swimmer was about to die (that could change soon, but wasn’t happening yet). His brain was intact, not dying.
My personal (completely unsupported) theory for the case where your brain is actually dying is that it’s plasticity of the brain at work. As brain cells die, the brain moves around the most important stuff to keep it in working cells. That, to me, makes evolutionary sense. You could use that kind of machinery all your life. That it goes into overdrive when it doesn’t help anymore because your entire brain is about to die would be a side effect.
Alternatively, it’s because we’re living in a simulation, and the caches get flushed to more permanent storage, starting with the more important stuff ;-)
If that has advantages to survival, there would have to be many survivors who have experienced this.
Also, I think shark story is different from this one. At no time, that swimmer was about to die (that could change soon, but wasn’t happening yet). His brain was intact, not dying.
My personal (completely unsupported) theory for the case where your brain is actually dying is that it’s plasticity of the brain at work. As brain cells die, the brain moves around the most important stuff to keep it in working cells. That, to me, makes evolutionary sense. You could use that kind of machinery all your life. That it goes into overdrive when it doesn’t help anymore because your entire brain is about to die would be a side effect.
Alternatively, it’s because we’re living in a simulation, and the caches get flushed to more permanent storage, starting with the more important stuff ;-)