This article from the Harvard Business Review describes a school of thought I’ve long believed – if it’s easy, it suggests I can already do it, which leads me to wonder how much am I actually learning. Linked to this is another life long philosophy : if we only did what’s been done before, Neil Armstrong would never have walked on the moon!
hbr.org/2016/07/if-youre-not-outside-your-comfort-zone-you-wont-learn-anything