I am not tutored in math well enough to know if this will even make sense. Hopefully people here will get my drift…

So, we can have a progression such as:

1+1=2

1+1+1=3

1+1+1+1=4

And so on.

But my understanding is things like 0.999…999 (infinite series) actually equals 1.

To my mind it is really, really close to “1” but not quite “1”. But mathematicians assure me it is actually the same as “1” and I won’t argue it.

So, where is the line drawn? How many 0.999… do you have to go before you say it is the same as “1”.

I guess what I am asking is when do you stop saying I am doing “+1 to anything you say” yet still be a finite number and say it is “infinity”?