It's getting dangerously close to the point where the best life to live really may be a life of torpor and indulgence. Wireless Internet access, TiVo, FreshDirect, video games and Netflix, coupled with older and still-improving conveniences such as cable TV, processed and frozen foods, microwave ovens and laptops, are making the case louder and stronger than ever before that we should stay home in the half-dark, sinking deeper into our armchairs and sofas at a glacial yet inexorable pace, in geologic degrees.