"life force" is something you can develop its not just something you are born with, although I also think people are born different. Also bear in mind that our society rewards people who fit a certain mold, and from your summary this woman ticks all the boxes.

I've done these while preparing for a job interview, and they are really hard (apart from the earlier competitions). It's amazing to me that this guy does them for relaxation. It shows just how different people can be, or how plastic the brain is.

So with neutrinos you can send a very noisy signal through the earth. Ok fine. And the with a "different modulation" (i.e. Shannon coding) you can send a reliable signal. But Shannon coding always comes at the cost of latency. And the problem this is supposed to solve? Latency.

Parent is probably comparing performance in FLOPS (i.e. max performance when using fully parallelizable code not limited by i/o etc.). Assuming CPU is always more efficient than GPU (in terms of percent of this theoretical max performance that is achieved), this gives an upper limit on how much improvement a GPU can give.