Guest Thinkers — February 16, 2011

Using the iPod Touch in the classroom

Scott McLeod

A weekly newsletter featuring the biggest ideas from the smartest people

I tweeted:

Here are the responses I got. Thanks, Twitter network!

A weekly newsletter featuring the biggest ideas from the smartest people

Starts With A Bang

Our Universe has more galaxies than Carl Sagan ever imagined

Forget billions and billions. When it comes to the number of galaxies in the Universe, both theorists’ and observers’ estimates are too low.

The letters "AI" appear with a glitch effect in multicolored pixels against a black background.

The Present

AI skeptic Gary Marcus on AI’s moral and technical shortcomings

The cognitive scientist argues the current AI environment is failing us as consumers and a society. But it’s not too late to change course.

A digital illustration of a human brain with blue veins and a glowing light at the top, set against a black background.

The Future

How Neuralink’s chief competitor is tapping into the brain without surgery

“Neurotech is not just about the brain,” says Synchron CTO Riki Banerjee, explaining how their tech can help with paralysis, brain diseases, and beyond.

Starts With A Bang

Ask Ethan: Do gravitons need to exist?

Electromagnetism, both nuclear forces, and even the Higgs force are mediated by known bosons. What about gravity? Does it require gravitons?

An open ancient book reveals two pages, intricately illustrated with a pentagram and hexagram, surrounded by handwritten text in a faded script that whispers secrets of necromancy.

The Past

The “Demon Method”: How necromancy once solved everyone’s problems

Grab a sword, a small plate, and a young child. We’ve got a demon to summon.

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