It's a simple test of your hypothesis. I say if you let go of this rock, it will fall to the ground. Let's test gravity. You say it won't. Not all rocks. And

It's a simple test of your hypothesis. I say if you let go of this rock, it will fall to the ground. Let's test gravity. You say it won't. Not all rocks. And true, maybe not all rocks. Maybe a great gust of wind will blow at the same time. Maybe there's an unseen glass table between your hand and the ground. Maybe it's only 0.1% of bad apple rocks that fall to the ground. So I just wanted to make sure, since you're sure that only 0.1% of rocks fall to the ground when you let go of them, well, let's try it. When you let go of a rock, it has a really good chance of not falling, right? We don't want to demonise all falling rocks. If you're sure of your thesis, you should be very confident letting go of the rock and demonstrating how it doesn't fall.