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A so-called objective function, a mathematical means of scoring outcomes, can reward the algorithm if it guesses correctly. This process is how commercial AI works. YouTube, for example, wants to keep its users engaged, watching more videos so that they keep seeing ads. The objective function is designed to maximize user engagement. The algorithm tries to serve up content that keeps a user’s eyes on the page. Depending on whether its guess was right or wrong, the algorithm updates its model of what the user is likely to respond to.
Spirals of Delusion
foreignaffairs.com
Here is an amazement—once I was twenty years old and in every motion of my body there was a delicious ease, and in every motion of the green earth there was a hint of paradise, and now I am sixty years old, and it is the same.
Startups are exploring how electric planes could clean up air travel, which accounts for about 3% of worldwide greenhouse-gas emissions. The problem is that today’s electric aircraft could safely carry you and about a dozen fellow passengers only around 30 miles, according to a recent analysis.
This Is What’s Keeping Electric Planes From Taking Off
Casey Crownhart
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