Yeah I think that's the "pro" part. But I think potentially a virus can kill a lot more than a nuclear war (I could definitely be wrong) so there aren't many pe

Yeah I think that's the "pro" part. But I think potentially a virus can kill a lot more than a nuclear war (I could definitely be wrong) so there aren't many people left. Most resources online don't really teach common people to build factories anyway. For example how does a community build a small steel factory? We need a lot more details than Wikipedia.