To be honest, I haven't looked at any statistics but I imagine a tiny few of those looking for gold found any and got rich, the most either didn't find anything, died of illness or exposure or got robbed. I just like the quote as a comparison. Updated the original comment to reflect I haven't checked if it's correct.
So that Twitter user started talking about Wikipedia funding the "culture war", and I stopped reading. I guess it's my own fault for reading what an anime avatar has to say.
>These were normally brown like tree bark but evolved to look like sooty brick in a few years.
Because the brown ones got eaten. But that's different from evolving to recognize where a road is, which is maybe possible but probably would take thousands or millions of years.