I would understand that is mean relative to existing low temp regimes. For example, conducting high current in the liquid nitrogen range would be a big step versus transmission using liquid helium. At the SSCL (Superconducting Super Collider Lab) in Texas (before premature termination), the power supplies were typically 10,000-15,000 amps at 7-10 VDC when using liquid HE. The Cu conduits resembled 2x6 boards!
Jones Beene Sun, 11 Jul 2021 14:02:13 -0700
relentless progress towards usable RTSC - room temperature superconductivity -
Well as this paper implies, the field of superconductivity is "heating up" these days ..literally
The prior story which may be very important on this point - and in the relentless progress towards usable RTSC - room temperature superconductivity - itself came out just a few weeks back
... which is a high pressure but ambient temp (non cryogenic) phenomenon... involving superhydrides ... which curiously could be related to LENR and the Mills/Holmlid effect, if as I suspect the superhydrides are found to be in highly redundant ground states (as an alternative to pressurization)
The holy grail of course would be a metal superhydride going into RTSC phase at ambient pressure.
This advance would revolutionized the economy in so may ways - it would be the "next big thing" as they say.
Does the "Berry phase" of this new theory help us to understand superhydride RTSC ?
It doesn't look that way so far. The whole thing could be little more than hype if it does not illuminate RTSC.
You have to worry when a PR firm releases a technical paper.