> gene wrote: Instead of pushing the finicky implant design, how much
> would seem to merely wear a wristwatch with added functionality:
> short-range biotelemetry to an immobile modem-equipped device in a...
> > sensors like MEMS accelerometers, photophlethysmography and
> > photooxytometry etc.signals evaluated by a low power embedded...
whoa, gene, you're a few decades ahead of me in technology. i never heard of either of the words you prefixed with photo. please define. the reason i suggested a bladder implant is that it could directly sample and report urine chemistry, perhaps to a belt buckle receiver/ storage device. a watch might be able to sample the chemistry of perspiration tho. perhaps one of the medics on extropians could comment on the usefulness of that data. spike