The below site offers a better comparison interface than the Lena image link from the post. Drag your mouse across the image to see the effect:
Interesting, thanks for the link -- I must say, I see pretty much no visual difference at all between BPG and the WebP format on those sample pics, at identical file size.
Keep in mind that environmental factors reducing your lifespan don't mean that you're going to remain perfectly healthy until you're 70 and then just suddenly keel over. Healthy people tend to not just die for no apparent reason -- the decay leading to death will likely just manifest itself at an earlier age and progress more rapidly too. Congratulations, now you can't control your bodily functions at 65 instead of 80.
Musical tastes differ -- if I left a bag of crap on your front porch without asking first if you were interested in receiving it, you wouldn't complain / be annoyed by it?
Wouldn't work: The read/write heads are actually floating a microscopic distance above the platter on cushion of air/helium/whatever. Without the gas, the distance between the heads and the platter would vary wildly, and it would almost immediately and literally come to a grinding halt, scratching up the disk surface in the process.
There's a difference between 'needing and xbox to watch TV', and the desire for a unified, integrated one-stop destination for your entertainment: games, TV, streaming media, using a single remote control and consistent interface.
That may not be a big deal to you or me personally, but i can definitely see a potential market for something like this.
Even if you never consciously launch IE, it doesn't mean you're safe: the IE rendering engine is used behind the scenes by a ton of other Microsoft and 3rd party applications as well, each of which is a possible attack vector as long as the IE vulnerability exists on the system.