Offline double-spend is still an unsolved problem. What prevents a rogue actor from making duplicates of the tokens and transact with it multiple times a day be

Offline double-spend is still an unsolved problem. What prevents a rogue actor from making duplicates of the tokens and transact with it multiple times a day before the transactions are tallied with a blockchain? And fyi, it’s much harder to duplicate bottlenecks than your bitcoin wallet at the moment. Edit: bottlecaps not bottlenecks lol