That person is hallucinating or dreaming. But I am not against him, even I wish for bitcoin to reach that high. But let us be real, bitcoins value will not reach that high in 2023. We could possibly hit 50k$ but 250k$ is just a wishful thinking. But who knows I maybe wrong and he is right. Let us just wait for 2023 so we can really decide that what he is saying is real is just purely wishful thinking.
Here's whats gonna happen: bitcoin price will hit $50k and you will sell all you have (assuming you have any). Price will dump to $35k and you will feel on top of the world. Then it will soar to $250k and you will stand there with your jaw on the floor saying wtf did I just do.
I'm not a time traveler, just using my own intuition.