There will be four stages in the economic transition to a post-labor, post-scarcity economy. In the first stage, AI will more than double economic output. Many people will lose their jobs, but most will find new work, and real incomes will more than double. Some people will leave the workforce, either by retiring early or by receiving unemployment benefits. (AI implementation stage. 2026 to 2029) In the second stage, AI and robots will exceed the abilities of all human workers and will expand quickly to replace all remaining jobs. Everyone who becomes unemployed will receive universal high income (UHI) payments. (Full unemployment stage. 2030) In the third stage, the economy will continue to grow rapidly, as the quantity and quality of human labor will no longer limit growth. UHI payments will be extended to all adults, and their value will grow tenfold as prices drop rapidly with increasing production. (Continuing economic expansion stage. 2030 to 2035). In the fourth stage, economic output will continue to grow, reaching 100 times current output. UHI will be worth 100 times the current average salary. The demand for most products and services will reach a maximum beyond which people don't need or want any more. We will have reached post-scarcity for most things. Most people will not use their full UHI allowance. We may switch to an economy without UHI, where everything is given away for free. (Post-scarcity transition. 2035 to 2040)