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We may be living IN a simulation (according to Elon Musk and many others), but that doesn't mean we don't need to perform simulations ourselves. Today, we're going to talk about good experimental design and how we can create controlled experiments to minimize bias when collecting data. We'll also talk about single and double blind studies, randomized block design, and how placebos work.

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[Complexly theme]

Hi, I'm Adriene Hill and welcome back to Crash Course Statistics.

Famous tech guy and likely future space dweller Elon Musk once told interviewers that there's a high probability that we're all living in a simulation. Now that might sound outlandish, and it's an interesting statement about probability, but today we're gonna focus on the simulation part.

[Crash Course theme]

Elon Musk, as well as some philosophers, futurists, and technologists argue that it's entirely possible–probable in fact–that in a few thousand years we will be able to create simulations, like World of Warcraft or Mindcraft, that are so real that they'll be indistinguishable from real life. Living in a world like that, there's no way for you to tell if you're living in the "true" world, or a simulation. Or maybe a simulation inside a simulation.

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