As long as there are jobs, rent will not be the only source of income (typically they are stated: jobs, technology, capital).
Technology is a given for a specific time. And I read your argument as: given enough technology, all will be capital. So I believe you assume no jobs will remain, given sufficient technology.
On that regard, I feel that this "end of jobs" dystopy is not more achievable than the Fukuyama's "end of history" theory.
As long as humans exist, they will have two things: a calling for doing something with their lives (and derive meaning from it) and a need to compete with others. So they will keep on working on new jobs, and money will flow, transfering value among them. Agriculture was once the be all and end all of economy, and now is just one industry. If automation makes some jobs disappear, or be easier, others will appear.
Technology is a given for a specific time. And I read your argument as: given enough technology, all will be capital. So I believe you assume no jobs will remain, given sufficient technology.
On that regard, I feel that this "end of jobs" dystopy is not more achievable than the Fukuyama's "end of history" theory. As long as humans exist, they will have two things: a calling for doing something with their lives (and derive meaning from it) and a need to compete with others. So they will keep on working on new jobs, and money will flow, transfering value among them. Agriculture was once the be all and end all of economy, and now is just one industry. If automation makes some jobs disappear, or be easier, others will appear.