Thing is if I have 100k coins it's possible. Only owe 96k on my house. I believe it will take some time but it is still possible.
Those additional 21b coins will take forever to mine, that's how block chains work. And mobile wallets will get a few bucks a day at most per devs.
OH so you WILL be able to pay your house off if the coin hits a dollar. Hyped up moronic posting. Saw this comment, Taking my like back.