I'd argue the 'easy' inventions are easy in hindsight. It's part of what makes an idea so brilliant is that everyone considers it so obvious once it's been cre

I'd argue the 'easy' inventions are easy in hindsight. It's part of what makes an idea so brilliant is that everyone considers it so obvious once it's been created. However, before that point, it is not even a glimmer on anyone's radar.