I feel a little whirl of dislocation — the trademark sensation of the world being more closely knit together than you expected - Robin Sloan

You know, old books are a big problem for us. Old knowledge in general. We call it OK. Old knowledge, OK. Did you know that ninety-five percent of the internet was only created in the last five years? But we know that when it comes to all human knowledge, the ratio is just the opposite—in fact, OK accounts for most things that most people know, and have ever known."
"So where is it, right? Where's the OK? Well, it's in old books, for one thing...—and it's also in people's heads, a lot of traditional knowledge, that's what we call TK. OK and TK." He's drawing little overlapping blobs, labeling them with acronyms. "Imagine if we could make all that OK/TK available all the time, to everyone. On the web, on your phone. No question would go unanswered ever again.

"It was tall, made of pale blue light, a creature with long arms and long legs and the shadow of a smile, and above it all, eyes that shone bluer still than its body. "What do you seek in this place?" the shade asked plainly."

Corvina’s got it wrong. Penumbra’s schemes didn’t fail because he’s a hopeless crackpot. If Corvina’s right, it means nobody should ever try anything new and risky. Maybe Penumbra’s schemes failed because he didn’t have enough help. Maybe he didn’t have a Mat or a Neel, an Ashley or a Kat — until now.