TagliatelliMonster
Veteran Member
What is a number?
What is an electron?
What is time?
What is energy?
What is anything?
The question What is X? for any kind of X is well nigh impossible to answer definitively, is it not?
No. There are reasonable answers to the questions you pose. These terms have unambigous definitions within well defined scope, so that when you use them, people know what you mean.
But ask 10 different people what a "soul" actually *is* and likely you'll get 10 different answers.
Not so much if you ask them what gravity is or magnetism or alike.