I guess I found a paradox. I'll call it "Time Travelers Bitcoin Wallet Paradox". Here is the concept:

There is a war at the future and one of the mad scientist found time traveling. He grab his hardware wallet and came today. He opened his PC and tried to recover his funds but his wallet is empty. Because, all the Blockchain data left in the future. He just took wallet with himself, not the Blockchain. The thing is, at the future, when he will create that wallet again, mnemonic keys will also be different. Because when he took that wallet with himself, he actually created that wallet in this time being on the Blockchain and not the future. Because of that he can't create same wallet again at the future. So, everytime when he time travels, he is changing future again and again. Everytime he tries to time travel, he is changing his wallet. Also, he can't take funds with himself. That makes Bitcoin time travel resistant too. I hope it is not brain burning thing.

That is so interesting for me because people can dilute paper money with time traveling. They can simply increase the supply slowly and no one can realize that easily. But there is no way to dilute Bitcoin with that kind of way. Think about gold, you can take couple bars of gold with yourself when you want to time travel but you can't take your Bitcoin.

You guys can think what can we do with this information. Today, a time traveler can manipulate any market with the funds that he took from future. If we use Bitcoin as our universal money unit, no one can manipulate any market again. Bitcoin's time resistance gives us time resistant world 🌎. If we buy and sell goods, products, stocks and even metals like gold with Bitcoin, we are making them time resistant too. That blows my mind.

TL;DR: Bitcoin is time traveling resistant.