Mining bitcoin is bad for the environment. According to a new paper, mining one dollar’s worth of bitcoin takes twice the energy to mind the same value of copper, gold, or platinum.

One dollar’s worth of bitcoin takes about 17 megajoules of energy to mine, according to researchers from the Oak Ridge Institute in Cincinnati, Ohio, compared with four, five and seven megajoules for copper, gold and platinum.

Mining bitcoin takes a lot of computing power, and those computers likewise need a lot of energy.

According to the Financial Times, which I can’t link here due to its paywall, Apple could be trying to woo radio listeners of color with its iHeartMedia grab.

Even with its mounting debt and impending bankruptcy filing, iHeartMedia has a crushing grip over the radio industry with over 850 stations. Nielsen research found black people spend more time listening to the radio than any other ethnic group averaging more than 13 hours a week, making them a prime target for Apple’s radio expansion dreams.

Personally, I think that’s an odd conclusion to draw from the iHeartMedia rumors, and I don’t think Apple has ever set out to target a specific audience.

Ben Bajarin argues that the Apple Pencil 2 is the iPad Pro’s mouse, especially with the new gesture support.

Apple’s new gestures clearly support this theory. Apple may be easing people into this new functionality but the idea of a multi-touch function on the Apple Pencil seems like a logical path forward. At the moment, you can customize the double tap gestures on Apple Pencil to switch between the two tools you use the most.

I agree with Mr. Bajarin; when you double-tap on the Apple Pencil 2, think of it as a right-click. The iPad Pro doesn’t need a trackpad or mouse, and I personally hope Apple won’t add them. Those are legacy tools.