A Friendly Artificial Intelligence or FAI is an artificial intelligence (AI) that has a positive rather than negative effect on humanity. Friendly AI also refers to the field of knowledge required to build such an AI. This term particularly applies to AIs which have the potential to significantly impact humanity, such as those with intelligence comparable to or exceeding that of humans ("superintelligence"; see strong AI and technological singularity.) This specific term was coined by researcher Eliezer Yudkowsky of the Singularity Institute for Artificial Intelligence as a technical term distinct from the everyday meaning of the word "friendly"; however, the concern is much older.