That is just false. What an unjust claim.

The only words we need are 1 and 0—everything else is a concession to intelligibility.

Are you just saying that or do you have something to back up the claim? Is it just and proper for you to decide this?

Imagine you're at a restaurant. The waiter asks what you want to order.

"I want a glass of water," leaves open the possibility of wanting other things. The waiter will wait for more information.

"I just want a glass of water," indicates a desire for water exclusively. The waiter will serve you a glass of water and hand you the bill.

Two completely different meanings and outcomes, differentiated entirely by the word "just".

There, I just told you two good ways to use the word.

"It costs ten dollars."

A flat statement of fact, with no tone.

"It costs just ten dollars."

Changes the tone of the sentence, adding the implication that ten is not a lot.

These are not the same sentence.

Epstein