And it's not a bold statement to say that "it IS possible?
Eh, not really. Odds are, it's possible somehow. Probability favors possibility.
Using the the quatum entanglement method of "teleportation" that you mentioned in your first post to transport humans is not going to happen.
Yes, I understand that. I obviously implied that a different approach would be necessary for teleportation. I was only mentioning that example because it proves a good first step for that achievement. Technology is advancing at such a rapid pace that we can't predict what capabilities we will have in the future, but we know they will be far beyond our capabilities right now.
Teleportation maybe possible, although probably unlikely. All the most likely theories of doing so have tons of problems. The spead of light being the major one.
It's assumed that nothing can travel past the speed of light, however that is false. Scientists just know that past the speed of light, particles start acting in strange ways that can't yet be explained.
Wormholes are the "simplest" solution for teleportation
They are the simplest solution right now, because they are so mysterious and we have no other strategy. If you've read Death By Black Hole, by Neil Degrasse Tyson, you would know there are many problems with this approach. A black hole would infinitely stretch every particle which comes near it, making it impossible to travel through. Also, you're assuming it is a portal, which is may be, but not likely one to another point in our own universe. It is more likely that our universe exists inside a wormhole, this theory would better explain physics and relativity.
I'm sure that teleportation will exist at some point in the future. Whether it's one hundred years from now, or one thousand. Either way, our technology will be so advanced that computers will be able to reach into alternate dimensions, and we may be a completely different species by then. We've discovering new things every day, and we still know very very little about our own planet, not to mention the entire universe.
Now that I have the context for you quote from Einstein it makes much more sense. But, as far as I can tell, that is him describing his idea of Time being the 4th dimension. I do not see how he is saying it is possible "to travel anywhere in space in an instant."
Traveling some distance while the idea of time doesn't apply would be instantaneous. Time is not a dimension, it is only an idea our species made up to explain the world around us. The 4th dimension is that which is at right angles to every point in the 3rd dimension, extended out into space. It cannot be very well explained, however, a camera has been invented to take a picture of it. The problem is, it doesn't make sense to anyone except physicists who have been studying it for a long time.
I hope I'm not coming across as close-minded or ignorant. I tend to take one side of a scientific argument, so we may both learn more from each other.