A confectionary company invented a type of bubble gum (called "Umpty Candy") that became addictive not because it had any drugs in it, but because they kept optimising the taste until it became too delicious to refuse.
fun fact: the people working for those companies, even though the attribute they are optimizing for is "addictability", they call it "snackability". Probably b/c of motivation and ... legal.
A confectionary company invented a type of bubble gum (called "Umpty Candy") that became addictive not because it had any drugs in it, but because they kept optimising the taste until it became too delicious to refuse.