That is baffling because in July he wrote "One of Whippet’s collectors is a semi-space collector." (https://wingolog.org/archives/2024/07/10/copying-collectors-

That is baffling because in July he wrote "One of Whippet’s collectors is a semi-space collector." (https://wingolog.org/archives/2024/07/10/copying-collectors-with-block-structured-heaps-are-unreliable https://wingolog.org/archives/2024/07/10/copying-collectors-...) I didn't attend the talk and don't know him at all so wouldn't want to speak for him but from personal experience one can find oneself saying some bizarre things under stress/pressure when giving a presentation in front of lots of people. And then one looks back and goes: "why did I say that??"