Star explosion to appear in sky in once-in-a-lifetime event

I hope that neutrino detectors are sensitive enough to give us advanced warning of this happening. I'm concerned about missing it, especially whenever it hits maximum brightness.

> The two are so close that matter being ejected by the red giant collects near the surface of the white dwarf.

> Once the mass roughly of Earth has built up on the white dwarf—which takes around 80 years—it heats up enough to kickstart a runaway thermonuclear reaction, Starrfield said.

Wild.

> Outbursts have been seen twice, reaching magnitude 2.0 on May 12, 1866 and magnitude 3.0 on February 9, 1946,[16] although a more recent paper shows the 1866 outburst with a possible peak range of magnitude 2.5 ± 0.5.[17] Even when at peak magnitude of 2.5, this recurrent nova is dimmer than about 120 stars in the night sky

https://en.wikipedia.org/wiki/T_Coronae_Borealis

magnitude 2 is not very bright. Still brighter than stars in the neighboring Hercules

What we're reading about has already happened and repeated again at least 30 more times, in the past 3000 years it took for the light to reach us. If there is some kind of astronomical event that will eventually destroy us, it's likely that it has already happened and we're just waiting for the effects to arrive.