No, Only diamonds last forever.
The tip of these nozzles has a hardness many, many times that of steel, even hardened steel and titanium.
On a non-linear scale of hardness from 0 – 10, where brass has 3-4 and steel hardness 5 and up, the EVERLAST tip has a hardness of 9. Diamond is 10.
It is unlikely that you will print much material which can destroy the tip. However, you will be able to slowly destroy the inside of the nozzle.
With the exception of the 0.25mm size, all EVERLAST nozzles implement the patent pending “core heating” system, which allows for a faster melting of plastic. This system is the only known way to achieve high printing speeds with nozzles larger than 0.60mm on FFD printers.
This internal structure will wear ut over time, but much more slowly than the tip of a standard nozzle. The reason it is slower is because the tip in standard nozzles is mostly ( more than 90%) destroyd by the rubbing in the hardening deposited material, not much by the internal flow of the melted plastic.
As the core heating (called MATCHLESS) of EVERLAST nozzles wears out, they eventually become more like normal nozzles on the inside.
As long as the Matchless part of the EVERLAST is a little intact, you can print faster, and at lower temperature than with any other nozzle.