Light bulb questions.. ?

Question

ok smart people tell me what the function/purpose of a light globe is?

Answer 1

To create light so that people can see.

However, some people are so stupid that no amount of light would help them.

.

Answer 2

you answer to my question was useless.

Answer 3

To light a room up so people can see?

Answer 4

There is none so blind...

as those who will not see...