OK its 3 AM and I just pieced together an idea based on the Amos post of an observation of a 4 minute discrepency in the time it took gamma rays to reach Earth from a super nova source as seen this July.
(The high energy particles arrived 4 minutes after the low energy parcicles instead of the other way around)

I speculated that surfing that energy wave could equate to some form of time travel. Not just having time slow down at great speed compared to a staic observer and therefore going into the future at a younger age, but rather having a means to go back in time compared to a static observer. Going back in time for 4 minutes or perhaps days.

While trying to bring this idea to a logical outcome I realized that you can't surf a wave that you don't know is coming.
Afterall you have to be going near the speed of light to catch this gamma (time/gravity) wave.
Then Eureka.
What you need is instant faster than light communication which can in fact CAN be done with quantum entangled particles since what you do to one partical will happen to the other particle NO MATTER how far away it is.

With enough of these entangled parlcles acting as sensors you might be able to get advanced warning of where one of these waves is passing and in what direction.

Now you can meet that gamma time distortion wave and surf it for whatever period of time you are able to keep up with it.

Getting towed into the wave at near the speed of light is certainly a challenge but even at half the speed of light you should be able to be within the wave for 8 minutes based on the one we observed this July.

I assumed that the effect of the wave would be stronger the closer it is to its source so there is reason to believe that the time distortion could be great.

Even 4 minutes is a lot of time to create advance action - ahead of time.

With super Novas happening throughout the universe all the timea galactic network of travel could be possible. The thing about this kind of travel is that you have to wait for a wave and seems more risky than trying to catch an 80 ft wave.

Since it is now 3:30 AM, I can be forgiven if all this appears to be total absolute nonsense in the light of day.
Maybe people who like science fiction would like the above idea.
Today Garrison Keilor said certain people like science fiction because they aren't doing that well on Earth.