There are still things considered “state secrets” or similar categories which can very very quickly cause you problems if it’s on a remotely commercial website.

I’m not going to say you can’t find some of this information in shadier spots, but “how do I get my GPS to work on a rocket” or “what kind of math do I need for a fusion implosion” are some of the more extreme examples.

I believe there are several explosive compounds where the formula is decently guarded, although in that case tracking the materials is easier.

I’m not saying anything they’re doing is good, but I feel like since they’re just reinventing the search engine with a lot of this they’re running into similar barriers.

Google has been censoring shit at the whim of governments for years, remotely reasonable or not