Here is a US DoD handbook for reforming capacitors with advice on storage shelf life, some tech notes on using electrolytic capactors from chemi-con, and a general capacitor guide from TDK.

An aluminium electrolytic capacitor is more like this The basic equivalent circuit for a capacitor has a series resistance and inductance, which covers the connecting leads and any internal tabs ...

Because the capacitor typically has a high ripple current stress, this higher resistance leads to extra internal power loss and increased capacitor temperature. The failure rate increases with the ...

Without replicating too much of the video and larger mythos, the basic story is that, according to various disputed timelines, electrolytic capacitors put into electronics between 1999 and 2003 or ...