[freediver]

> Should the search engine fill my feed with “earth is not flat” when I’m trying to search for “proof that earth is flat”.

What should it do? Article titled "There is no proof that the earth is flat" also satisfies the query completely from a keyword perspective, although not from a semantic. But if there is no actual proof that earth is flat, any article claiming there is would satisfy the query only from a keyword perspective but technically not semantically. It is a good question.