The theory of relativity!
A friend of mine tells me that it's very easy to learn the complex theory of relativity. For instance,
Do not keep roasted peanuts in transparent jar, they disappear fast.
But if you keep roasted cashews in transparent jar next to peanut jar, peanuts last longer..
However if you add a third element..A liquor bottle nearby...All disappear in no time 😂😂😂
THIS is the theory of relativity!