[tux3]

A tetrafoo is four times the size of a barbaz. Tetrafoos are pretty big things, about the size of a washing machine.

Now I've said nothing specific about either these things, besides size.

Can you tell me if a barbaz fits through a door? Probably.

Can you see that you can reach that anwser without doing any math about how big doors and washing machines are, but just with implicit knowledge?

The source of truth here is not visualization, it's knowledge. In fact, whatever you visualized, I gave you too little details so that your visualization would have to make up extra things that aren't true. You don't even know if the shape of those things is square or circular.

So even if you can't do it without visualizing, you should see that visualization is really just pulling from some other source (abstract knowledge). You can bypass that step and just get to know the result, without visualizing it.