"Timeout Trees is a very concrete and specific proposal for a channel factory design that actually attempts to address the real issues of use and implementation instead of a half-defined and vague concept. That is massive progress in terms of addressing Lightning's long-term scaling limitations." -- Shinobi

TIMEOUT TREES: A SOLUTION TO SCALING LIGHTNING NETWORK LSPS

John Law's Timeout Tree proposal is one of the first concrete designs for a channel factory to address Lightning's scaling limitations.

https://bitcoinmagazine.com/technical/timeout-trees-a-solution-to-scaling-lightning-network-lsps