Superfluid is an token-centric smart EVM contract framework that introduces the Super Token. The Super Token is an extension of the ERC20 standard that has additional powerful value-movement abilities beyond the basic "transfer". We call these abilities Super Agreements.

Currently there are two additional Super Agreements:

"Money Streams" - Constant Flow Agreement (CFA): move tokens in constant-rate by-the-second streams between accounts with no capital lock up.

"Instant Distributions" - Instant Distribution Agreement (IDA): assign proportions to many receiving accounts and lump-distribute tokens to them on the basis of the set proportions.

These agreements modify the balance of Super Tokens just like basic transfers would! There's no claiming/settling/etc. involved - Superfluid instantly settles everything within the Super Token balance.