Well they still have a finite life and are less replaceable than a battery. Even if it quadrupled the lifespan (which is a reasonably generous estimate given OP’s 4-year duration and wikipedia telling me supercapacitors last 10-15 years), it would still eventually need to be replaced and that would generally require resoldering it.
I think a much better solution is 2 battery slots, one to be a backup battery, unused, and then when needed, an LED on the mobo can be turned on. Honestly OP could jury-rig up a similar system if he wanted to, although it’d be a bit ugly and anytime something is jury-rigged I don’t really think of it as reliable.
Another vote for “well-written”. I have read both, and both are good if they’re done well. Besides, I don’t usually have the option when I find a book, the summaries rarely tell me and I’m not gonna dig through the middle of the book for the answer to this question.
What I care about is being able to connect with the characters. If I can connect to someone in a realistic relationship, great. If I can connect to someone and they get that idealist treatment, great. If I can connect to someone and it seems like a romance but it’s abusive and the book becomes a realistic horror novel, that’s also great, I’ll feel the fear and desperation.
I never have wanted to read a book to have a specific experience, is my point. If your experience was well-written, it would be good.