The attraction of variable ratio reinforcement moves from the classroom to the boardroom. It is the secret to enthusiastic customers.

Security researchers found that in less than 60 seconds, they could open a hatch on a plane’s exterior, plug in a tiny device, and redirect the aircraft’s autopilot or sabotage its flight plan.

The canceled Ryan Reynolds and Josh Brolin X-Force movie had a wild plan that would have changed everything. Rob Liefeld exclusively revealed the villain twist Fox planned before Disney shut it all ...