Drop ink on wet paper. Tilt slightly. Walk away. What comes back looks like something between a Rorschach test and a solar corona - and the ink did all of it on its own. These are five attempts at getting out of the way and letting the materials decide.
The Platinum PTL-5000a makes an interesting promise: a 14k gold nib at a price that undercuts almost everything else on the market. I borrowed one from a friend to find out if the gold actually changes anything - testing it for both writing and drawing, which is how I use all my pens. The honest answer is more nuanced than the price tag suggests.