If ISPs were like an electric utility, we'd see something like a cost per GB transferred in cents, with a minimum charge reflecting the cost of maintaining a connection of a certain speed to the network.
Which is algebraically identical to a monthly charge and data cap with overage charge. The main issue is the overage charge is too high, it should be like 1 cent per GB (Comcast is charging 20x that).
1c/GB would be a decent rate for home data transfer in 2023, but where would you set the free limit? For reference, at my house I have a 1Gbps line and it looks like in 48 hours I have downloaded 1TB of data (looking at the number of received bytes my AT&T device is reporting). Am I normal? I don't know, but AT&T does...
I think that's rather high compared to average, considering the standard cap for Comcast Xfinity residential is 1.2TiB per month, and they claim only "a very small percentage" of their customers use more.
I don't think the actual cap really matters if the per-GB and base pricing reflects the true costs. If it's low it means heavy users pay more, if it's high, light users pay more.
you are (mostly) agreeing (except for precise definitions of metallic and ceramic). Their comment is unclear, but it means
"In almost all applications of superconductors, they don't use high-temperature ones. [...] The ones [the superconductors] that see use in the LHC, for instance, aren't [high temperature superconductors]."
It just has a sentence in the middle of it that confuses you into thinking their antecedents are "the HTSCs" and "ceramic" instead of "the SCs" and "HTSCs".