Not sure what part you're refering to precisely.
If this is about the feeless transactions, the series will go on with more insight and explanations.
I wanted to say what are you talking about with
not proof of concept, about your series or something specific about Bismuth.
Waiting for more insight details about your series.
Likely a misunderstanding.
That was not "proof of concept" like "proof of work" "proof of anything fancy so I can pump"
Just saying that what I announced - free transactions for dApps - is something that works already, and not just a proof of concept.