Lightbulb Challenge: LED vs. Halogen

[Update: See the bottom of the post for a quick update thanks to some issues pointed out by Nicolas Marmet in the comments.]

In the 1960s Walter Mischel performed studies involving preschoolers and marshmallows. The "Marshmallow Experiment" involved sitting kids in a bare room and setting a marshmallow1 in front of them, then telling the [...]