Upvoted because this appears an honest answer to the question, but it'd be useful if you said why you considered it an absolute certainty that no machine will ever show human-level intelligence. Personally I wouldn't assign probability 0 even to events that appear to contradict the most basic laws of physics, since I don't have 100% confidence in my own understanding of physics...
Related to: lesswrong.com/lw/fk/survey_results/
I am currently emailing experts in order to raise and estimate the academic awareness and perception of risks from AI and ask them for permission to publish and discuss their responses. User:Thomas suggested to also ask you, everyone who is reading lesswrong.com, and I thought this was a great idea. If I ask experts to publicly answer questions, to publish and discuss them here on LW, I think it is only fair to do the same.
Answering the questions below will help the SIAI and everyone interested to mitigate risks from AI to estimate the effectiveness with which the risks are communicated.
Questions:
Note: Please do not downvote comments that are solely answering the above questions.