The full quote was:
“$1000 a month per adult seems quite generous for a Basic Income — at least compared to most Basic Income proposals that I have read about.”
Just to be clear: I was saying it was quite generous in comparison to most other Basic Income proposals.
But in answer to your questions: Yes, I do consider $12,000 per year to be sufficient to live on, as I live on a lot less than that myself. I have looked at rents recently — though obviously they vary from one location to another.
Obviously there are places in which $12,000 a year may not be sufficient to live on. But, with a Basic Income of $12,000, you should be able to afford to go and live somewhere else.
There is debate about how a Basic Income system should deal with housing costs. You can read more about that issue here:
Basic Income and the Housing Cost Problem
Just how should a Basic Income system cope with widely varying housing costs?
I hope that helps. Have a nice day! :)