What's the name for that law when there's something you never think of and then you encounter multiple times really quickly? Because a couple of days ago, Bob K

What's the name for that law when there's something you never think of and then you encounter multiple times really quickly? Because a couple of days ago, Bob Kerns published a really cool Periodic Table input element on Observable: https://observablehq.com/@bobkerns/elements-input https://observablehq.com/@bobkerns/elements-input (not to take anything away from the submitted periodic table - they're both really nice)