Don't think so. The total amount of energy you could send forward would always be finite. That's assuming you just have time-travel in the forward direction.

Don't think so. The total amount of energy you could send forward would always be finite. That's assuming you just have time-travel in the forward direction. If you can time travel into the past, maybe. But I think paradoxes like that are a big reason why Hawking predicts time travel backwards is not physically possible.