Nothing is a concept so deceptively simple that it inhabits the strange intersection of science, philosophy, and language itself. Like a child asking “Why?” to the point of absurdity, trying to get to the bottom of this problem can be pretty frustrating, so I enlisted the help of a physicist and a philosopher to get an idea of what—if anything—”nothing” means. Apparently, this is also a frustrating question for experts.
What is nothing, according to physics?