Everyone that has installed the wallet app has keys an numbers attached.
That's what n0nce told you.
Everyone that has downloaded blockchain can see numbers and addresses.
That's also true.
Anyone that would pay $1.2 trillion today to have the sum of all the numbers in the Satoshi's system attached to their address, would have a number attached, the same as any person that holds an address in the system.
That's false. If you bought the equivalent of $1.2 trillion in Bitcoin, you'd have definitely more Bitcoin than I do, because your balance would be greater than mine.
It's just that the number would be different.
That's a
big difference. If you own 1 car and another owns 10,000 cars, you both own cars, and therefore, both own a number of cars, but not the same amount.
A guy with 18,000,000 attached to his address, and a guy with 0.00000001 attached, can both show only keys and math symbols.
But only one of them can prove that they own 18,000,000 units of the system. The other has much much less.