I think you should never reshelf books yourself.

For one you can’t be absolutely sure which archiving system is used in the specific library without either asking or working there, which kind of moots the point.

For another this can put back wrongly archived books back in the system. While it seems reasonable that a book is archieved correctly this does not have to be the case and therefore simply putting it back could be wrong

Funny to read stuff like that from ppl that poured atomic waste I to the sea

Well the submarine on their is for research afaik (the hospital too I guess) he is doing ocean floor mapping afaik with manned submarines

Well when you look at Europe you see that the countries that make up the majority of the countries that colonized America have the higher autism rates too