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In this comment on "How many principles does it take to change a light bulb... into a laser?" by Howard M. Wiseman, Physica Scripta 91 (3), 033001 (2016)I am analyzing this extremely nicely formulated question in the framework ofthe Hanbury-Brown & Twiss experiment thus celebrating also its 60thanniversary. I am giving a straightforward, concise and unique answer on thisquestion, emphasizing that the intensity correlations or the photon statisticsmake the difference between a light bulb and a laser.

Comment on "How many principles does it take to change a light bulb ... into a laser?" by Howard M. Wiseman, Physica Scripta 91 (3), 033001 (2016)