This will only be exciting to those of us who still read physical paper books. But like. Guys. They did it. They invented the perfect bookmark.

Classic paper bookmarks fall out easily. You have to put them somewhere while you read the book. And they only tell you that you left off reading somewhere in that particular two-page spread.

Enter the Book Dart. It's a tiny piece of metal folded in half with precisely the amount of tension needed to stay on the page. On the front it's pointed, to indicate an exact line of text. On the back, there's a tiny lip of the metal folded up to catch the paper when you want to push it onto a page. It comes in stainless steel, brass or copper.

They are so thin, thinner than a standard cardstock bookmark. I have books with ten of these in them and [...]

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First published:
August 14th, 2025

Source:
https://www.lesswrong.com/posts/n6nsPzJWurKWKk2pA/somebody-invented-a-better-bookmark

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Narrated by TYPE III AUDIO.

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Images from the article:

Textbook page showing mathematical symbols with origami pieces scattered around.

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“Somebody invented a better bookmark” by Alex_Altair

LessWrong (30+ Karma)