one is that two Eliezers would presumably be better than one, though I don’t have a strong intuition about the optimum number of Eliezers.
The cost of keeping a carbon-based Eliezer alive would mean that whoever pays the bill would have less money to run the uploaded Eliezer. So the uploaded Eliezer would live for fewer years. Since it would probably be cheaper to run uploaded Eliezer for a subjective year than to keep carbon Eliezer alive for a year, running only the uploaded Eliezer would mean more Eliezer years overall.
The cost of keeping a carbon-based Eliezer alive is negative so long as his productivity exceeds the cost of giving him food to eat and a place to sleep. The existence of uploaded Eliezers may drive up the price of resources (or drive down the price of Elizezer-thought) until that condition becomes false, but that’s not going to happen with the first copy. Thanks to comparative advantage it may not happen for a long time afterward either; the resources humans use and the resources computers use aren’t perfectly exchangable.
This ignores network effects of having simultaneous Eliezers, and also the ability of physical Eliezers to accomplish goals the upload cannot because it’s stuck in the internet.
The cost of keeping a carbon-based Eliezer alive would mean that whoever pays the bill would have less money to run the uploaded Eliezer. So the uploaded Eliezer would live for fewer years. Since it would probably be cheaper to run uploaded Eliezer for a subjective year than to keep carbon Eliezer alive for a year, running only the uploaded Eliezer would mean more Eliezer years overall.
The cost of keeping a carbon-based Eliezer alive is negative so long as his productivity exceeds the cost of giving him food to eat and a place to sleep. The existence of uploaded Eliezers may drive up the price of resources (or drive down the price of Elizezer-thought) until that condition becomes false, but that’s not going to happen with the first copy. Thanks to comparative advantage it may not happen for a long time afterward either; the resources humans use and the resources computers use aren’t perfectly exchangable.
This ignores network effects of having simultaneous Eliezers, and also the ability of physical Eliezers to accomplish goals the upload cannot because it’s stuck in the internet.
In that case, run two uploaded Elizers and give one of them an android. It will still probably be cheaper.