However, the cat (or, rather, subatomic particles that behave like the cat) has proved hard to hunt down in practice because such superpositions of states are fragile and easily disrupted phenomena.

ECONOMIST: The 2012 Nobel prizes

Meanwhile, back at the Cheshire Cat boutique, the Comstocks are hard pressed to name all of the tax forms they have to file.

WSJ: Help Wanted: Tax-Compliance Gurus

It's kind of hard to tell whether the new Aibo is supposed to be a dog or cat.

FORBES: Ten O'Clock Tech: Sony's New Aibo Robot Pet