Scientific American hasn't been the magazine it was for decades -- there's nobody writing columns like what Martin Gardner or A.K. Dewdney used to write that made the general public interested in some mathematical or computational problem. These days it is basically a clone of Discover, and being purchased by its publisher makes sense.
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[ 5.1 ms ] story [ 17.6 ms ] threadThe other problem is that science is so politicised in recent years. It has to fit within certain parameters or else.