New bitcoin is created (issued) each block according to the halving schedule. Of course 2140 isn't a hard date, ita dependent on the block time which generally less than the target block time due to average hashrate growth.
Discussion
Yes, I know, used that for simplicity. Point was no new units get created from then on, so there is no longer any connection between units and money creation. Not trying to be nitpicky for the sake of it, just a phrasing I often see which doesn't quite make sense. Unless you consider new utxos as new units, in which case I guess your phrasing is fine as is...just thought of this now.
Between work* and money creation (typo above)
I wasn't considering new UTXOs as new monetary units, I was referring to the sum of all bitcoin existant on-chain. What I mean is that all bitcoin units come into existence through proof of work, not that all proof-of-work cause new bitcoin to come into existence. The transaction fees are the block reward in addition to the new (created/issued) bitcoin, and proof-of-work is expressed for the fee portion as much as for the issuance portion. Theoretically at some point in the future, when the tx fees reliably exceed the issuance, the hashrate might synamically vary block-by-block depending on total available fees in the mempool.
Im with you. Lemme come back to this with better thinking, if I indeed still have a point worth making after I reflect. Thanks!