Amongst all the uncertainties of modern life, there is something comforting about the knowledge of t1⁄2. The half-life period of any radionuclide is 100 percent knowable yet no one can predict what particle will decay at any given time. There is a metaphor here, no one predicted the decay of the USSR and it seems like a morbid grave stone – a memorial, this long lasting reminder of its demise that is the K-278 Komsomolets.
https://www.nbcnews.com/news/world/soviet-nuclear-sub-sank-norway-1989-still-emitting-radiation-n1028181?cid=sm_npd_nn_tw_ma
Further metaphoric embeds…