This is going to be the greatest wealth transfer in history, from each, according to hir gullibility, to each, according to hir ability to understand crypto and control market demand.
Part of the crypto revolution... and what crypto-anarchist would not love to lure and transfer gullible stat[es/esmen/ists]. Political candidates now accepting bitcoin campaign donations, and surely dabbling in DC's themselves while not having clue.
I, for one, would find it quite refreshing to have a serious crypto-anarchist talk about how to implement demurrage and clean up the UTXO set of all these old keys that have been sitting around.
Some first glance utilities might be... reducing size of blockchain enabling pruning, setting expectation of coin as being code mobility rolling release nonfork... ie: follow or be left behind. And there is already concept of coin days destroyed = coin in a tx * idle days. One problem is replicating [multiparty / programmed] contracts. These tend to have required [human / bot / DAO] negotiation which not all parties may wish to re-agree to, they may also be happy to watch demurrage burn things out of spite. Potentially leaving some merkle lingering longer than first thought. [If that is case then] another aspect is distributed designs to actually carve up and store unprunable decades worth of blockchain into a queryable historical storage layers, possibly again then demurring themselves if needed as size grows and legacy queries die off. Recalculating checkpoints, collating into signed active history bundles, and so on.
Or we can just wait until there's a new blockchain in which the proof-of-work is cracking old bitcoin ECDSA keys.
Cute, but not really elegant or power efficient.