also I read a joke that made me think
here it is:
An infinite number of mathematicians walk into a bar. The first one orders a beer. The second orders half a beer. The third, a quarter of a beer.
The bartender says "I see where this is going", and pours two beers.
so if 1+0.5+0.25+0.125 goes on to infinity, will it reach 2, the numbers get smaller as we go, hmmmm