I’m not an expert in the field, so it may be best to take what I say with a grain of salt, but:
There was some result to some experiment that showed that there were quantum fluctuations in space-time during the formation of the universe. We don’t fully understand quantum gravity, but this shows that masses moving around and messing with spacetime isn’t going to be all that different from electrons moving around and messing with the magnetic field.
It looks to me that you’re referring to the BICEP2 results published in March. If so, this is still unconfirmed, and physicists have pointed out a possible issue with some of the data that needs to be resolved. (Its still more likely than not to end up being true but shouldn’t be taken as a definite right now).
I’m not an expert in the field, so it may be best to take what I say with a grain of salt, but:
There was some result to some experiment that showed that there were quantum fluctuations in space-time during the formation of the universe. We don’t fully understand quantum gravity, but this shows that masses moving around and messing with spacetime isn’t going to be all that different from electrons moving around and messing with the magnetic field.
It looks to me that you’re referring to the BICEP2 results published in March. If so, this is still unconfirmed, and physicists have pointed out a possible issue with some of the data that needs to be resolved. (Its still more likely than not to end up being true but shouldn’t be taken as a definite right now).