On the surface, it’s a brilliant prank: he found a way to create a…

The Ultimate Retaliation: Pranking My Roommate With Targeted Facebook Ads

On the surface, it's a brilliant prank: he found a way to create a custom targeted audience of just one person, about whom he knew more than Facebook's ad system did. But it shows the potential for online harassment, especially since it ties in with our fears about online privacy.

“We can’t choose a world where the US gets to spy and the Chinese don’t.”

Fake Cell Phone Towers Across the US

“We can’t choose a world where the US gets to spy and the Chinese don’t. We get to choose a world where everyone can spy, or a world where no one can spy.”

(Also, the “towers” referred to in the title are apparently not physical towers so much as interception devices that mimic a cell tower on the network. It’s imprecise language that has propagated through just about every article on the topic.)

On Facebook

Great photo: It’s rare to see a circular rainbow because usually we see them…

Ring Around the Rainbow

Great photo: It’s rare to see a circular rainbow because usually we see them from the ground, and there aren’t enough raindrops below the horizon to produce a lower arc. But from a high enough vantage point (say, in an airplane or helicopter), with the right rain and sun conditions, you can see a full circle.

One of the ongoing questions about the rise in autism spectrum cases

Autism Prevalence Unchanged in 20 Years

Interesting: One of the ongoing questions about the rise in autism spectrum cases is how much is an increase in diagnosis (not to mention expanding definitions, but that’s easier to adjust for) and how much is an increase in actual prevalence. A new study looks at data worldwide from 1990 to 2010 and finds that the rate has actually remained constant across that time. That suggests that the rise in documented cases is almost entirely due to better diagnostics.