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The prevalence of touchscreens has probably resulted in a decrease in average fingernail length
(self.showerthoughts)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.
Eh technology will change again, before we see any major changes. I remember reading some fifteen years ago that due to texting on an oldschool mobile phone, our thumbs might evolve in a new way because we all of a sudden used thumbs in a new way. Some scientists predicted we'd started using thumbs for tasks we'd otherwise use our index fingers for.
It could, however, make a social trend for shorter fingernails (primarily on women, I imagine). Just meaning people are more likely to trim their nails shorter.
I know, but it might be a short trend (pardon the pun). It's also not a trend currently supported by my personal anecdotal evidence.