Experience aids creativity
I can't remember where I first read it. It may even have been something John Hegarty or Steve Jobs said.
The pic above shows this beautifully I think.
The thing is that pic says it is about experience not creativity. But trust me when I say it's not.
What it clearly shows though is that age is not a barrier to creativity because the more experienced you get the better you become at spotting unseen connections.
Which kinda makes me wonder why agencies are so obsessed with youth.