And this is the good scenario. For if the adoption (or demand for on-chain transactions) does not follow the block's capacity increase, then the network will not be sufficiently self-sustainable.
Who is the voter, who gets to decide whether to shrink or expand the block size at a given time? I would assume it is the miners, but what would the miners incentive be to expand the block size? I guess it is the sweet spot where resource expenditure divided by the number of transactions lead to the economic optimum. But when we get to the point where the coinbase transaction is getting closer to zero, it might be against what bitcoin was intended to achieve. It will forever be a good place to store value for the very rich because they don't care about the fees. But the network would certainly not be incluse on a global scale.
How dynmaic would or could these adaptive block sizes be?
Second layer solutions aim to minimize your influence on others' freedom as much as possible. That is the goal, in my view.
That's what I think, too. Second layer solutions are similar to small communities having their own required level of security as the number of nodes facilitating/validating those transactions is smaller in a local community than it is on a global scale so to say. But a local community might not require the same level of security whereas someone sending $100 million from A to B wants the highest level of security possible, hence goes for a base layer transaction and pays a fortune in fees, which in relation to the amount transacted is irrelevant again. It wouldn't be the same with adaptive block sizes I think.
TrustWallet - UnTrustWorthyWallet
Craig Wright - Craig Wrong
That was a good one about our beloved Crack Wright!
Edit: and I am wondering what the backlashes could be of adaptive block sizes and whether there will only be issues once we get to see it in action. Comparing BTC to XMR now is a bit difficult to say the least. BTC is about 290 times the transaction volume of XMR as of now. The idea sounds compelling at first, but it may not be the solution to problems that can't fully be anticipated now. Ordinals only became a problem that everyone fully understood once this insane volume (or number of transactions) was generated with them.