Say there’s a lump of ice in a bucket. Say there’s a lump of steel in another bucket in another room. Say a deaf woman puts a magnet on the lump of ice and then picks the magnet back up with no trouble at all. Say a man with perfectly good hearing puts a magnet on the lump of steel and notes an odd effect when he picks the magnet back up. Say they heat the ice and the steel up to the same temperature: half of the ice promptly melts away into a puddle of liquid, but the steel remains solid.
You apparently say the ice is the steel. You apparently say the man is the woman. You apparently say the people who disagree with you are you. Sure, in every case they’re apparently in different places, and they apparently react to stuff in vastly different ways; and we can apparently determine whether they differ in mass and volume, and after we ask the man and the woman whether they’re aware of one another we can spot the difference upon comparing their answers; and so on.
So let’s see if you’re right. Say the buckets are put on a table in front of me. Say you see me offer a short guy some remarkable amount of money to hand me a lump of ice; say he peers into the buckets, and he picks up the lump of ice and the lump of steel, and he hands me the lump of ice from Bucket #1, and I pay up. Say you see me place the ice and the steel back in their buckets, and make a tall guy the same offer; say he picks up the lump of ice and the lump of steel, and he hands me the lump of steel from Bucket #2, and no money changes hands.
Say I then put the ice and the steel back in their buckets and offer you that deal; can you tell the difference between the lump of ice and the lump of steel, and casually make a fortune in less time than it takes to tell it? Or do you look puzzled, and say I haven’t explained how they’re not the same thing — adding that you also can’t tell the difference between the short guy and the tall guy? Or do you, perhaps, wind up handing one lump or another to the deaf woman from earlier in this post, claiming that you honestly can’t tell the difference between her and me?