> I still don't understand where the responsiveness came from. personally, I thought it was because it was macos, which was riddled with a lot of legacy code,

> I still don't understand where the responsiveness came from. personally, I thought it was because it was macos, which was riddled with a lot of legacy code, for example 68k emulation in the innards of the kernel, and tacked on cooperative/preemptive multitasking. I remember playing with a leaked version of Copeland/Gershwin. It felt way more modern in a different way than BeOS, but I can't remember how complete it was.