[This is his attempt to disprove modern physics]

That is strange.. just a few days ago, I filled a balloon and after tying it so that it would not deflate, I let it go and it took to the sky so fast that I could not get hold of it again. It did not fall like balloons have fallen before. Hmmm. I suspect the balloon was made of rubber and rubber is heavier than air (or so I have been told), it should have dropped to the ground... (I think it should have?)