Just to clarify, it's Hawking, not Hawkings.
I have no problems with someone changing their point of view. As we learn, we change. I would be more afraid of a scientist who still held all of the same beliefs of 50 years ago with no new information.
Besides, he was clearly speculating. Note, he said "might". "The hole would need to be large and if it was rotating it might have a passage to another universe."
Titor described this already saying the singulRITIES Powering his device were made from rotating black holes.
Both Titor and Hawking are referring to an Einstein-Rosen Bridge, a geometric property of rotating black holes first proposed in 1935.
It's about as mainstream as you can get in physics and has been for 80 years. In fact, it's even used to describe Asgard's Rainbow Bridge in the movie "Thor."
In other words, it's certainly not a "change of thinking."
What, did you think Titor came up with something new?
He used the
Kerr solution (1963) to the problem, bastardizing it to something it's not along the way. That's what Hawking is referring to.
Harte