I was wondering what viewpoints and opinions this community has when it comes to cryptocurrency.
Personally, I’m not against it, but I’m not for it either. I like the concept of bringing back cash anonymity, and also decentralization (obviously). Although I don’t think it will be viable for at least another decade.
That is not how public/private keypairs work in most algorithms but even if it was, the fact that the public key is used to verify the signature comes from a specific private key means that both (or all) public keys could validate all transactions signed with that private key.
I recommend you read BIP-44 since this has been a standard for years in Bitcoin. Your other crypto knowledge seems woefully out of date as well, from your questions in your other post. Time to brush up, I think.