In this issue:
"Lab-Built Brains": Scientists copy nature's most complex organ in the hope of solving the mysteries of brain disorders, from autism to Alzheimer's.
"Tangled Up in Spacetime": The collaborative project "It from Qubit" is investigating whether space and time sprang from the quantum entanglement of tiny bits of information.
"Heart Therapy": Harnessing the organ's own healing properties may help prevent heart attacks and lessen the painful effects of severely narrowed coronary arteries.
"The Case for Robot Disobedience": Don't worry about disobedient machines. Devious human masters and misunderstood commands are the real threat.