reactobad glasses and DASERs

so you've seen reactolite glasses that turn shade on as the sunlights up your day, and are quite cool - but wouldn't it be cooler still if you had shades that reacted to the scene you were in ? say things turn bad, you need to look cool even if its dark - think bruce willis crawling thru the aircon ducts in the airport at nite in die hard XVII, or sigourney weaver about to combat a googleplex of aliens on the moon with no name, or vin diesel in pitch black....then when things lighten up metaphorasmically, you wanna look innerlecktual and smart, your glasses revery to full on transparency...presto, Professor Indiana Jones, voila, ecco ergo cogito

of course, silly of me to forget that dna invented something quite similar...so how about this as Another Bad Idea: Rechargeable Glassses - these use sunlight to charge up and then show you things in the dark that were there earlier - these things may not be there anymore, but at least you can feel like there's an element of visual stability about the scene. brings a whole new meaning to the after dinner speech announcement: "gentlemen, re-charge your glasses"....

The DASER Is a new device that we have come up with at the Institute. It is an aronym which stands for "Darkness Amplified by Stimulated Evasion of Radiation", and it (like noise cancelling headphones) is not hard to imagine, but is quite hard to get right. There is a short story in the cunningly crafted collection of cornucopia by Arthur C. Clark called "Takes from the White Stag", which describes how noise cancellation (a.k.a. zone of silence) can go horribly wrong. Try to imagine the end of the universe and bacon sandwiches at the same time, and you will understand how bad a DASER could be in the wrong hands.