Do you mean, they have written about Boltzmann brains, or that they actually raise concerns similar to those you raise in this post? A string of names does not actually assert the latter.
All of the physicists I named, except Hartle, have raised concerns about the Boltzmann brain problem threatening observational cosmology. Hartle has argued against the SSA, so he thinks Boltzmann brains aren’t problematic. I probably shouldn’t have included his name in the list. Still, the fact that he has published on the issue suggests that he regards it as more than just nonsense.
Do you mean, they have written about Boltzmann brains, or that they actually raise concerns similar to those you raise in this post? A string of names does not actually assert the latter.
All of the physicists I named, except Hartle, have raised concerns about the Boltzmann brain problem threatening observational cosmology. Hartle has argued against the SSA, so he thinks Boltzmann brains aren’t problematic. I probably shouldn’t have included his name in the list. Still, the fact that he has published on the issue suggests that he regards it as more than just nonsense.