Main Question or Discussion Point
what will be the development of computer in next 20 years?
The expense would depend on how expensive the manufacturing process was. Digital cameras are pretty cheap at this point, as are the circuitry packages that enable wireless communication. Some of the molecular self-assembly stuff they're doing might eventually make the manufacturing process little more complicated than growing sea monkeys, believe it or not, if they were to successfully develop nano-sized devices like these. :tongue2:My area was Population Ecology - I"m somewhat out of date now. Assuming what you said will come to pass - it would be VERY expensive to seed the surface of the earth with sensors.
What you describe is more like microclimatic studies. Ecological studies include that area, but are in no way limited to it. Most of what I've read in the past years is more about tying things together rather than investigating environments at the micro level. Not that those kinds of investigations would not go on as you indicate.
Your view would be great for climatic and forecast meteorlogical studies.