If your original claim were true, then you'd also be saying that there is twice as much area at 2m above sea level as there is 1m above sea level, and infinitel

If your original claim were true, then you'd also be saying that there is twice as much area at 2m above sea level as there is 1m above sea level, and infinitely more than at sea level. If you truly believe this, then I will be willing to make you a trade where I give you one tenth floor condo in exchange for 10 first floor condos.