The scaling problems between small senders and a potentially huge crowd of receivers can be solved with immutable, hash-addressed resources + proxies/caches and

The scaling problems between small senders and a potentially huge crowd of receivers can be solved with immutable, hash-addressed resources + proxies/caches and best effort multicast. The former would at least require changes at several levels in the protocol stack, which is difficult when most changes happen incrementally one level at a time. The latter I believe faces real hardware design problems in network equipment AND incentive problems on the ISP sides. So large collective action is required. Or we continue to pay cloudflare.