Don Lincoln

“We are pretty confident at this point that the {{w|Accelerating expansion of the universe|expansion of the universe is speeding up}}, and the thing driving it is {{w|dark energy}}. Now, what is dark energy? I don't know.”

“I'm not personally a fan of the idea of SUSY and I never have been. But it's possible and we should continue to look for it. For one thing, if supersymmetry is false, then superstring theory is false. I don't believe in superstring theory either, but I like it. I kind of hope it's right. But hope isn't good enough in science.”

“Two well-regarded measurements for the expansion rate of the universe disagree, leaving cosmologists very puzzled. It may be that something large has been overlooked in our theory of the {{w|Big Bang}}. This discrepancy is called the {{w|Hubble tension}} and it has led to a very interesting conversation within the cosmology community.”

“One very interesting idea is that when we get to the smallest size of all, we don't find a particle, but rather an ultra-tiny vibrating string.”