It's impossible to consider Bitcoin without considering lightning. Two sides of the same coin. It's still early in its adoption curve for sure, but it has been gaining traction.

- Twitter uses lightning for its tipping mechanism

- The Podcasting 2.0 standard is all lightning based

- NCR is integrating lightning

- Blackhawk is integrating lightning

- Kraken has enabled lightning

- Robinhood is integrating lightning

- Square/block is investing heavily into lightning development and enablement

I'm probably missing some big ones...