This paper considers ethical, philosophical, and technical topics related to achieving beneficial human-level AI and superintelligence. Human-level AI need not be human-identical: The concept of self-preservation could be quite different for a human-level AI, and an AI system could be willing to sacrifice itself to save human life. Artificial consciousness need not be equivalent to human consciousness, and there need not be an ethical problem in switching off a purely symbolic artificial consciousness. The possibility of achieving superintelligence is discussed, including potential for 'conceptual gulfs' with humans, which may be bridged. Completeness conjectures are given for the 'TalaMind' approach to emulate human intelligence, and for the ability of human intelligence to understand the universe. The possibility and nature of strong vs. weak superintelligence are discussed. Two paths to superintelligence are described: The first path could be catastrophically harmful to humanity and life in general, perhaps leading to extinction events. The second path should improve our ability to achieve beneficial superintelligence. Human-level AI and superintelligence may be necessary for the survival and prosperity of humanity.
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