If you work in the fields, and I invent tech that makes you twice as efficient, the most likely result is that half of people like you lose their jobs, and wage

If you work in the fields, and I invent tech that makes you twice as efficient, the most likely result is that half of people like you lose their jobs, and wages stay the same, if not decline due to oversupply. Might be great for me, but it sucks balls for you. And it tends to suck balls for more people than it helps. Edit: and that basically follows through to your kids...