strategies of the successful technical professional in the 21 century?

Answer 1

Not enough detail here. What sort of technology? Anyway, my general advice is to look for the niche market. And more specifically, the hobby and leisure time and collectibles and suchlike markets, where seniors who have money and time to kill will be your major consumers. The baby boomers are growing old, and will soon be mostly retired. The market for things to keep them happy, healthy and occupied is therefore going to grow for a long time to come. The health care professions is another area where growth can be expected.

As I say, it depends on what sort of technical professional you are.