For what it's worth, I had absolutely nothing to do with the post: I didn't make it or encourage anyone to make it. I just noticed a sharp uptick in sales earlier today. Which I love since I spent a lot of time and money designing the poster and getting it printed. Here's the real buy bait: Please buy my book and poster! You can find the book "Tools" on Amazon, and the poster at theodoregray.com
Also for what it's worth, it's a very cool art project! And I'm always happy to have more computer nerds get an introduction to the tools required to make stuff in the physical world.
One that changes color the longer you brush so that you know you've brushed sufficiently (and not just blood-red to indicate your gums are now bleeding).
One that changes color based on where the calculus on your teeth accumulated, so you can target you brushing.
One that does the brushing for you, just keep it in your mouth for 3 minutes and rinse.
> One that changes color based on where the calculus on your teeth accumulated, so you can target you brushing.
This exists, although for some reason I'm not aware that it's available as part of a toothpaste. (Maybe the toothpaste foam would create false positive indications by making it seem to accumulate in places that don't actually have plaque.)
Blast! I was hoping readers would be too young to remember and I would get the credit. \O_O/ ... I used to get these from the dentist as kid in the 70's.