Only a time traveller would make a currency where:

- It takes 10 minutes for one confirmation of a transaction and you need at least 3.

- You need to download 10s of gigs of blockchain data and then verify it all before you can get started. All of this takes days and you haven't even done a single transaction yet!

- You need 10s of gigs of hard drive space and there's only so much pr0n you can delete.

- It's inflationary in the short to medium term but deflationary in the long term (if it survives that long).

You see a time traveller doesn't have to suffer any of the above. He can just hop into the future in his trusty time machine to avoid waiting. He enjoys the tech of the future which means petabyte hard drives so no need to delete anything. And he's paid nothing for his coins which might someday be worth trillions. It's the perfect currency for a time traveller.