Thanks for giving me an idea for my next startup! I plan to buy half-a-dozen Bengal tigers. Because if people ride with a bit more effort when a machine tells them to imagine being chased by such a beast, just think how great a cardio workout they’ll get when being pursued by the real thing! Forget “fitness hacking” because soon “fitness slashing and chewing” is going to be the next big trend. At least, for the tigers…