The Graphs We Need: 6: The Half-Life Decay

How long does it take for half of our knowledge in any particular field to be worthless?

The graphs we need 1: the inverted 'U' and diminishing returns.

The graphs we need 2: learning and the staircase.

The graphs we need 3: attention vs. time in your presentation

Bonus: Love Presenting, Hate (badly used) PowerPoint

The graphs we need 4: Gaining Mastery

5: Managing Cashflow