Rene largely works on routing and pathfinding. Not sure why anyone would think ecash helps with this. Maybe trust-based LN channels using ecash could absorb some of the pressure during high fee events...? This is not a well known technique and I'm not aware of anyone working on it. Very cool idea though.
In any case vagueposting with no followup is kind of a nothingburger. ¯\_(ツ)_/¯ Maybe we'll learn more later but nothing to do here until Pickhardt decides to elaborate.
Calle comments as follows
What does this mean? I didn't know ecash federations are trying to fix Lightning.