Given the recent work to design a 'clockwork' rover for Venus exploration[0] I could see some utility for mechanical circuits in harsh environments like Venus,

Given the recent work to design a 'clockwork' rover for Venus exploration[0] I could see some utility for mechanical circuits in harsh environments like Venus, or helping in the event of a nuclear meltdown like Fukashima Daishi, or other environments particularly antagonistic to electronics. 0 - https://news.ycombinator.com/item?id=27164195 https://news.ycombinator.com/item?id=27164195