In reply to UKC News:
Whilst he may not have climbed any trad routes before Princip Hoffnung, he probably did a fair few multipitch sports routes where the bolts are pretty spaced.
If you grew up on Trad you learn to trust your gear placements but have a aversion to falling even on bolts.
If you grew up on bolts you learn to trust falling and then just have to get your head round trusting the gear.
Therefore on poorly protected routes I guess a sports climbing background is probably better - although a trad background is clearly better