Spoiler, its RDT
In case people do nto know what RDT is, which they really should if they have been into coffee for a little while as it makes a big difference:
RDT is Ross Droplet Technique, which is very much adding water to beans. Named after David Ross who came up with it back in 2005
I’m continually amazed at the effort espresso drinkers put into making a coffee
Some of us are a hell of a lot lazier than that lol