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Back to The Curious Case of Henry Modisett, with Henry Modisett.

How Did Perplexity Become an Answer Engine?

Henry Modisett says Perplexity became an answer engine through truly iterative experiments. A working setup already hit a database with SQL, and the team kept adding more text. More text meant people could ask questions beyond what anyone expected the tool to do.

They were not thinking about Google or about search. They were thinking about asking questions of a large data set. Someone changed the backend and plugged it into a Bing search API. Suddenly a person could ask anything and get an answer. After many years at Quora spent on how people obtain knowledge and how information is organized on the Internet, an on-demand question with an instant answer was what they had always wanted. It lived in a Slack bot, not a product. Because it worked immediately, an iPhone app and a company felt obvious. If everyone could ask a question on a phone and get the answer instantly, that had to be valuable.

The path was a six month project with no plan beyond a hunch, stuck in a hyper iterative cycle. They were onto something about a month before ChatGPT came out, right behind it. Even then, the models were dated by several months from the last training run.

Grokipedia·Perplexity·Google

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The Curious Case of Henry Modisett ·

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  1. Why Would Perplexity Build a Browser?Henry Modisett wants Perplexity to build a browser because most people cannot tell a search engine from a browser, and the product should show up wherever…
  2. What Do the Best Designers Want From a Job?Henry Modisett says the best designers want ownership, trust, and accountability from a job. He hires and keeps people by working backward from talent.
  3. What Is Perplexity's Brand Strategy?Henry Modisett's brand strategy for Perplexity starts from the product being about knowledge, and knowledge is everything.
  4. Why Did Henry Modisett Join Perplexity?Henry Modisett joined Perplexity because he had worked with two of its co-founders at Quora and already knew them as some of the best engineers he had ever…
  5. Why Is Craft the Easy Part of Hiring a Designer?Henry Modisett treats craft as the easy part of hiring a designer because the work can be judged before any conversation.
  6. Why Does Perplexity Refuse Design Mocks?Henry Modisett refuses design mocks unless Perplexity really believes it will build and launch the work. A mock can open a project.
  7. How Did Henry Modisett Get Into Software Design?Henry Modisett studied computer science, loved the big concepts such as algorithms and graph theory, and basically failed most of his tests.
  8. What Happened to View Source?Henry Modisett says the great poverty of the web today is that the view source impulse is being lost.
  9. Why Does a Startup Make a Better Designer?Henry Modisett says a startup makes you a better designer because you make hard decisions, ship them, and see the results.
  10. How Can Someone Know a Fact Faster Than Ever Before?Henry Modisett says a person can know something confidently faster than ever before. He calls that property of Perplexity speed to knowledge.

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