The heavier it gets, the more energy you need to make it faster. So, if you want to make mass reach speed of light, you need an infinite energy.
ahh yes, thats the key which helps me understand it and it makes sense: mass can never reach an infinite size because it would need an infinite force.
AFAIK sometimes you can say 1/0 = infinite
Well you can do it in certain aspects of math, like when looking at graphs of things, and for finding limits.
I don't know how they make compilers or the real technical reasons behind why you cannot divide by zero. Is anything even being attempted? In other words, say I write some code which divides 5 by zero, does the computer even attempt it?