I'm not sure when this little "feature" got slipped into the Scala compiler, but now no longer need to choose an faux-meaningful name for your implicits. implicit val _: Show[Int] = _.toString Reality: the implicit has a name, and that name is `_`.
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What if we need two implicits?
Then everything comes unstuck, unfortunately. They both end up being called ‘_’, accessible via backticks, but one shadows the other. See @virus_dave's reply for a fair analysis of this aspect of it!
