[mrerrormessage]

If this can be made practical at any scale, I think the most exciting applications will be in long-range space drives. Although it sounds as though immense amounts of energy are needed, not needing to take along matter to eject in order to move is a game changer for space exploration.

[JabavuAdams]

No, for the same reason that burning fuel in a cylinder to turn a crankshaft is more efficient than using fuel to make fertilizer to grow feed to feed horses to pull your cart.

[vbezhenar]

I think you can use photon engines in the first place.

[KenoFischer]

Yep, you'd be significantly better off just shining the laser behind you.