I've been pondering further difficulties of being a product owner, both silently and aloud, so yesterday I was happily bowled over by a new idea on the topic from my new Thoughtworks colleague Jasper "Dutch" Steutel (@dutchdutchdutch for twitterphiles). He calls his discovery the "design spike," and we ended up talking together about a related concept, the "value spike." So what's this all about? Aside from being "Vampire Month" on the Pragmatic Agilist?