Are cigars in tubos immortal?

[Li Bai]

Serious question here, a friend of mine found an Upmann tubo in a desk drawer while emptying his grandfather's house when he passed away right before COVID.

It was an 80's or maybe even 70's cigar iirc and it was a delightful smoke according to my friend so here's my question: 

Do you guys think a cigar in its tubo could be almost immortal, assuming the room in which it is kept is pretty stable RH-temperature wise?

[ha_banos]

Any different from those who vacuum seal or wrap boxes I wonder? Immortal? Slows down ageing if it's well sealed I guess. So could seem immortal. 

NB .. store in a cool dark place.