How did civilizations survive not changing for thousands of years? America seems to be the antithesis. You get the feeling America cannot survive without change.

Is it safe to assume that very few people go through their lives carrying a dump truck [load] of thoughts in their head and live to a ripe old age, die of old age?

Rejection and powerlessness, especially over things perceived as inferior thyself I have a very difficult time accepting [not getting extremely angry over].