We are entering the era of robotic space telescope observatories. Here is one inescapable fact about gigantic ground-based optical observatories. By definition, they are only 50% efficient -- they can only operate at night. That efficiency is reduced even more by non-viewing days. Robotic space telescope observatories operate 365/24/7 and view quadrants of the sky, not single targets through a 30-meter straw. There is only one Mauna Kea, space telescope observatories can be built anywhere, and will be. TMT isn't a good investment for Hawaii island. It will be like the rail in Honolulu. TMT is estimated to take 8 to 10 years construction and assembly. Only the construction will be local contractors, assembly will be with off-island professional crews. It will take 2 years to first light, so possibly 12 years before TMT hiring. By then, it will be possible to have space telescopes with apertures of miles, instead of meters. The gigantic ground base optical observatory is on the way out.