I was reading about a recently announced device on Engadget when I encountered this particular nugget:
[The device is] not going to accompany you on daily subway rides.
That got me thinking: how much of the US population actually lives in cites that have subways? As it turns out, the fraction that does is actually very small: 10.5%.
I arrived at that number by first looking up which US cities are served by metro systems, then summing their populations by entering “population of CityA + population of City2 + …” into Wolfram Alpha*. I then divided that sum by the US population.
Since around 1 in 10 people have to worry about regular subway use, it’s a bit ridiculous to review a device based on that. I still await the day when technology bloggers realize the world doesn’t begin in the Bay Area, valley in Chicago, and end in New York.
On a more humorous note, with a total of 254.4 million vehicles in operation, perhaps we should evaluate devices based on a different use case:**
@jdrch devices should be judged on highway driving use
— DJ Real Juicy (WFGC) (@realjuicy) March 13, 2013
*Note that you’ll have to split the query into at least 2 parts to avoid running into Wolfram Alpha’s character limit. My queries were:
**simultaneous operation of a vehicle and electronic devices is strongly recommended against