For all y'all on here saying you have no survival skills: computers and electronics aren't going to just go away, and the fact that you're having this conversation on a federated internet forum means you know at least a little bit more about computers than your average bear. For any scenario where extinction is a possibility, being able to operate a computer and use it to communicate with other humans would be a huge asset, and the more of those people we have around the easier it'll be to keep it going when things go to hell. Don't sell yourself short.