These physical constants are also important to the formation of matter. Muck around with them too much and atoms (or anything else!) don’t exist! Which begs the question as to how am I typing on this keyboard!
Agree wholeheartedly. The universal constants have to each be just right or there's no such thing as atomic cohesion. There's greater chance that my kitty cat can walk back and forth across my keyboard and by random chance produce a new iPhone app than all of nature be fine-tuned just right for life to exist.