> Lightning is a layer on top of bitcoin that can handle an arbitrarily high transaction throughput over time, while still basing itself on bitcoin’s underlying security. It works by opening multi-signature channels between nodes, so that a user can send coins from one node to another, using a series of interconnecting nodes along the way.

So how does doing this exchange bypass the blockchain "administrative" traffic? Do transactions in Lightning get priority while non-transactional details get lower priority? She says BTC is the "final settlement layer", which I understand better since she words it like that. So that means that all transactions will be between apps and those apps abstract the actual transactions between accounts? So it's not that end users will be using the blockchain any more than bank customers use the SWIFT network, right? Such transactional exchanges will go through a clearinghouse to settle transactions?