It occurs to me that this points to most IT systems (particularly interfaces) being poorly designed.

Over the past 10 months, five feet have been found on shorelines along the Strait of Georgia, southwest of Vancouver. ... Four of the feet are right feet. The fifth is a left foot. ... There are more than 2,000 people missing in British Columbia alone, says Ebbesmeyer, so there's a good likelihood that they come from one of them.

One of the missing people had 4 right feet and a left foot? And I thought I was bad at dancing...

I find this a better analogy:

Picture a rubber sheet with a grid of parallel lines drawn on it. These lines represent the trajectory of objects moving along straight paths. An object with mass causes the sheet to shrink in toward the object in all directions, causing those parallel lines to curve in toward the object as well, and consequently the paths of traveling objects to curve in toward the object as well. (The stretch [pun intended], of course, is that the traveling objects are constrained to follow the lines, but you have to realize that the objects are not rolling along on top of the sheet, but are in fact moving within it.)

Extend this to three dimensions, and you have gravity. Now the only thing to determine is why objects warp space, and that is beyond my ken.

The G1 was released in October of 2008, yet they still had 70% of the number of project releases that the iPhone had in 2008. 70% as many OSS projects in a quarter the number of months.

(Granted, the SDK was available for longer, but still very few people, developers included, actually had a phone; they were excited enough about it to develop apps solely on the emulator, without being able to actually use them until October.)