So as to avoid duplication my interpretation of what you say here is in my reply to Eliezer. Let that constitute the implied disclaimer that any claims about safety apply only to that version.

An oracle programed correctly with these specifications seems to be safe - safe enough that all else being equal I'd be comfortable pressing flicking the on switch. The else that is not equal is that N bit output stream when humans are there. Humans are not reliably Friendly (both unreliable thinkers and potentially malicious) and giving them a the knowledge of superintelligence should be treated as though it is potentially as risky as releasing a recursively improving AI with equivalent levels of unreliability. So I'd flick the on switch if I could be sure that I would be the only one with access to it, as well as the select few others (like Eliezer) that I would trust with that power.