If true FTL was real, shouldn’t take that long. Or if space could be folded, it would be instantaneous.
Yeah, I don’t know about FTL, theoretically it’s not possible. But they said that about powered flight, and breaking the sound barrier, also. At any rate, that technology doesn’t yet exist. It would be way cool to see it in our lifetimes, but I don’t think it’s gonna happen. Not in OUR lifetimes, anyway.