I know some people are going to say: "Hey! That's Dan Flavin's act. Why in the hell is Irwin doing a Dan Flavin? Why is he suddenly so inconsistent – fluorescent one day and Cor-Ten the next?" The key to all of this is that we have to examples what we mean by consistency. And here the critical question is: "what do we use to measure consistency with?" If you measure consistency in terms of material, or gesture, then I will be found inconsistent. But, in all of the recent pieces and proposals, if you go to the actual site and look at it, you will find that the solution is absolutely consistent on the grounds within which it responds to its environment. This in turn is consistent with my development of the implications implicit in non-object art.
What of machines and prefabrication? How do they compare?
Well, the machine has its limits. We, using handcrafted methods, do things that machines cannot do. Of course, it's not fast like a machine. And in complicated areas like here, things wouldn't go the same using a machine as it would by hand.
We use numerous variations of all these connecting and splicing joints. Using a machine, [the wood joints] can all be made uniform, but really, we need to consider whether that's a good thing. It's better to make each mechanism and joint by considering what's suitable for each unique condition.
These days I am more interested in the reverse case [of Da Vinci's helicopter]: ideas that could have worked many centuries before they actually appeared. The economist Alex Tabarrok calls these “ideas behind their time”
Curious minds want to know why these ideas appeared so late — and whether there might be anything that would prevent delays in future. One explanation is that the ideas aren’t as simple as they appear.
The bicycle is not as straightforward an invention as it seems. To move from ox-hauled cart to human-powered bicycle requires smooth-rolling wheel bearings, which in turn need precisely engineered bearing balls. Modern steel ball bearings were not patented until the late 1700s, and demand from the 19th-century bicycle industry helped to improve their design.