Scientific American - 09.2019

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TRUTH &

UNCERTAINTY

LIES

NTY

PAG E

80

PAG E

84

PAG E

74

TOUGH CALLS

By Baruch Fischho

CONFRONTING UNKNOWNS

By Jessica Hullman

RADICAL CHANGE

By Michael A. Hogg

PAG E

88

A NEW WORLD DISORDER

By Claire Wardle

Illustration by Red Nose Studio