Honestly, think whatever you want, I don't care.
When someone mistakes infinity with "no limit" (different wording = different meaning, isn't it?), it says it all.
Now about experiment. I am sure you know what gravity is. Show me gravity! You can't. The only thing you can do is to experiment that a stone falls on the ground each time you drop it. that's all you can conclude from your experiment; when I drop a stone, it falls on the ground. And then you will build a theory to explain why and how the stone falls each time you drop it.
It is exactly (at a different scale) what happens with the universe. Observations and then theoriy to try to explain the observation. You don't buy it? Fine, but don't tell us than mathematicians and astrophysicists are intellectually dishonest and not men of science because they work on theories. Rant over!