Is it possible to travel at light speed?

Question

If you could travel at light speed wouldn't you crash into something? I once thought perhaps if you traveled at light speed instead of physical matter colliding it would pass through each other. I also thought maybe the friction of the vacuum of space would create a wall to how fast we can travel through space. Do you think we will ever live in the world of Star Wars or Star Trek and travel at or beyond speeds of light?

Answer 1

We live in a 3D world. If I mark 2 dots on a piece of paper (A and B) I can easily navigate from one dot to the other in a split of a second. But consider yourself as a dot. Live in a 2D world. If U wants to travel between these A and B... U got to travel fast.
This is because we live in a higher dimension 3D.. and a Dot lives in his own flat land 2D.
What if you fold this paper, so that both A and B are on top of each other. Then that tiny little dot in the 2D flatland does not take any time to reach from A to B.
This is pretty much the idea of the Space Time Fold.
Now if a creature lives in 4D, it can fold our third dimension like we fold the 2D world. In this case we will be able to travel faster than the speed of light... In other words, a Star gate.
We will be able to reach from one galaxy to the other in no time. But none of these are possible because we live in 3rd dimension. If we have some way of travelling between dimensions, then traveling fast is a possibility.
What do you think will happen if a Circle lives in a 2D world (flatlander) travel to our dimension (3D). It will not be a circle anymore. It will be a Sphere.
So if you travel to a higher dimension then you will not look the same as you are now ... A totally different creature.
These are very deep concepts that I can talk for hours and hours……..
Hope U understood the concepts.

Answer 2

The problem is that you can't accelerate TO light speed from a lower velocity.

So most of the issues you're raising wouldn't arise.

I think it is not premature to say that faster than light travel will NEVER be invented UNLESS it takes a very different form than current travel -- e.g., some kind of "hyperspace jump". Making vehicles ever faster won't get it done. The physics that says you can't do that is well-established; the only way it can conceivably be defeated is by other physics that says "Fortunately, that's irrelevant, because here's a whole other kind of approach to travel."

Answer 3

nope, unless you are superman! it has to do with the concept of space-time (with time being the 4th dimension), and the fact the the closer you get to the speed of light time changes so you'll never hit it. like a function with infinity. if you stretch out the table forever it will seem like it will eventually hit that line, but it never will.. go look it up if you really want to know, it's reaaaaaally complicated.

dare to say that if we do go the speed of light, something very unpleasant will happen. but i'm sure we are trying anyways...

Answer 4

if this ever happens, i dont think we will so much travel faster than light, but instead learn to fold space in some clever way so that distances are much less... then we'll just move slowly toward a destination that is momentarily thousands of times closer than before.