I have heard this statement "tx fees are underpriced" and "fee market is broken" several times and I still don't get it. Mainly because the way it gets portrayed is that we must raise fees now vs. let things develop naturally otherwise miners can't stay in business. When the block reward halves what do you think happens? My expectation is that miners will still need to pay the bills in fiat so the fiat per BTC ratio will increase. This increase, by it's very nature, increases the fiat "profit" per transaction fee. So, if fiat/BTC increases due to reward changes the fees go up from the perspective of a fiat holder. Heck, I suspect the block reward will be a major factor in driving fiat/BTC ratio until the block reward gets close to the average transaction fee. .
If anything, we should get the blocksize to the largest rationally supportable size and allow nature to take it's course. Fees, from a fiat perspective, will go up even if the miners do nothing to prioritize transactions by fee or increase the bitcoin denominated standard fee. Miners will still make a profit as scarcity drives the fiat/btc ratio and the fee market will continue to develop as a means of preserving scarce resources and preventing spam. It seems to have done an adequate job so far and this may be the best possible outcome with respect to keeping bitcoin globally relevant. One of the biggest drivers of adoption we have at our disposal is the fiat/btc ratio.
There must be something I have been missing in the arguments I see about this. Where does the above thinking not work?
I'm less about raising fees "now" than I am about not suppressing, via centralized governance, fees now and forever.
Block subsides have taken Bitcon this far, we don't need to enhance the subsidies. There is a line around the block for Satoshi's Better Mousetrap, so we don't need to undercharge nor promote with giveaways.
Good point about fiat/btc ratio driving adoption! We always operate under the key assumption Bitcoin is and will continue growing.
You also already seem to get the fact that a ~5 cent BTC tx uses electricity equivalent to about 1.5 days worth of typical American home (ie $15-$20; cite: some post on reddit I can no longer find). That's a good starting point.
What you are missing in order to get from there to my position is an understanding of (the implications of) the fully intentional very high difficulty of forking Bitcoin. Even uncontroversial soft forks like BIP66 entail some degree of FUD/chaos/drama. Therefore, it is not best practice to posit anything remotely like an easy, flexible, fine-grained path for us to "get the blocksize to the largest rationally supportable size and allow nature to take it's course" via consensus and subsequent commits. Let's work with, leverage, and indeed celebrate, what we have (ossification at 1MB) and not make the actual the enemy of the perfect ("the largest rationally supportable size"). "Rationally" presupposes a purpose, and subjective individual interpretations of Bitcoin's Ultimate Purpose
TM differ wildly.
Until block subsidies taper off, we only need (as in must) raise tx fees sufficient to exclude spam via prioritization. But the spam exclusion/wallet improvement/RBF initiatives also present an excellent early opportunity for the rough contours of a fee market to emerge. IMO, sudden massive blocksize increases waste that opportunity.
The last step to see my PoV is an appreciation of what sidechain/LN's Layer 2 will do to scale and thereby enhance Layer 1 tx.
As Frappuccino purchases move off main chain and are consolidated by Layer 2 processes, each of Layer 1's 7 tps becomes increasingly valuable, demonstrating it is not the size of the block that matters, but how you use it.