Hmm, methinks Mithril be some sort of silver alloy, but mayhap there be some titanium in the mix as well?
I did vintage RPG back in the 70s and 80s, back when Gygax was all there was. I find that such activities tend to stimulate the thought processes that lead to real world problem solving, even if it is based on fantasy. The closest I've come to RPG since then is Chess, or maybe Super Mario Brothers on SNES to entertain my daughters. I got tired of poor DMGs Monty Halling 3rd level fighters into 20th level Paladins and insensible traps that inflicted the equivalent of a tactical nuke in damage in a low level game. It ends up with the DMG dueling with his best friend while everyone else in the campaign calls it a day. We did have some real marathon games back in the day.
I also got a little more intrepid and started having my own adventures rather than living vicariously through the characters I'd created. At the time it was a good way to while away the monotony, but once I had the freedom to go do myself, I discovered that shooting a 44 magnum or hiking a mountainside was much more satisfying. My earlier youth was based more on outdoors activities, so it seemed natural to turn back to that when the opportunity presented itself. Doing circles in the Indian Ocean or being stuck on base was far removed from anything I'd call adventure.
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The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)