What is the real value of an MBA? The skills developed, or the prestige of the issuing institution? For those seeking to add an MBA to their resume, their answer to that question will make the difference between spending thousands of dollars and spending no dollars at all.

Drones are filling our skies. If companies like Amazon manage to negotiate their way past aviation restrictions, drones will soon be delivering our shopping to our homes and workplaces. No longer just toys and aerial photography tools, drones are here to stay. They are used in search and rescue, disaster relief, bomb disposal, military and civilian reconnaissance, archaeology, infrastructure inspection, anti-poaching, conservation, construction and law enforcement.

In 1233 a papal bull decreed that anyone admitted to the mastership at the University of Toulouse should be allowed to teach freely in any other university. Ever since then it has been set in stone that the rite of passage into a master’s degree is a three or four-year undergraduate degree. Pretty much by definition, a master’s is a follow-on from a bachelor’s degree.

Sometimes the Earth bites. Some would say ‘sometimes the Earth bites back,’ with climate change and rising incidents of flooding in mind. But most natural disasters are not man-made. There’s very little we can do at the moment about earthquakes and volcanoes, for example. And hurricanes and typhoons were around long before we started filling the atmosphere with CO2. So studying natural disasters and preparing for them shouldn’t be undertaken with a sense of guilt about self-inflicted damage. It should be done with a simple sense of self-preservation.

“The ghost in the machine” used to refer to humanity’s ineradicable tendency towards self-destruction. Arthur Koestler’s 1967 book of that name argues that our brains evolved very rapidly to make us the intelligent, talking creatures we are, but the new gray matter is built upon the original reptilian brain stem that we all still have, and which is capable of overpowering all our fine reasoning skills and propelling us towards catastrophic actions like nuclear war.