Breadth of experience, knowledge and sectors and world-class skills in one discipline. As you can imagine, this would set you up pretty well. IDEO famously seek out t-shaped people

T-shaped people need breadth and depth

Helpful reminder of how fragile the atmosphere is despite it looking pretty big when you’re standing outside.

Our atmosphere is as thick for the Earth a the skin on an apple

Which, remarkably, still does not mean they are secure.

There are 2.2 trillion combinations of an 8 character password