"Bank" carries a lot of unfortunate connotations with it that won't necessarily apply to the supernodes. It would be better to use a different term for those.

"Bank" carries a lot of unfortunate connotations with it that won't necessarily apply to the supernodes. It would be better to use a different term for those. What's likely to closely resemble banks in the future are bitcoin clearing houses, where transactions just move around internally. These will be supernodes themselves, but not all supernodes need to be this kind of clearing house.