[meandog]

Awesome! I just wish I could comprehend what they’re talking about.

[JudgemAll]

When the surfer gains forward speed because of the wave, he turns 90 degree or a bit less. This means he is now gaining sideward momentum from the wave in addition to the forward momentum he already got. There is a net gain at 45 degrees (or a bit less due to friction) of relative air/ground velocity.

If the univers expansion is the wave and light propulsed by it, a ship turning 90 degrees to it could ride it faster. It’s a conjecture theory of sorts.

[UCANSEE2]

“I just wish I could comprehend what they’re talking about.”

It’s simple.

They are making it all up as they go.

[adorno]

Awesome! I just wish I could comprehend what they’re talking about.

There's not much there to comprehend.

As the article says:

The other six dimensions exist largely as unknowns, but everything is based on hypothetical one-dimensional strings.

A newer theory, called M-theory, suggests that those strings all vibrate in yet another dimension.

Which means that, what they're proposing is totally dependent upon that last theory of theirs being true. If that last dimension in their theory does not exist, which means their theory is also false, then time travel as they're proposing would be pure fantasy.

We don't know if the other six dimensions exist and now these two physicists need yet another dimension for their time travel to be possible.

The only way to travel in time is to (and here's my own theory), stop time. Thus, the universe was able to expand faster than the speed of light only with the suspension of time. In fact, time was the last dimension created when the universe got underway.