Comment by eries

I tried to address this in The Lean Startup and also in the follow-up book The Startup Way. Cutting corners, making crap does not help you test your thesis. What's needed is not to ape the techniques and tactics that work in another industry like software, but to really think from first principles about what will create sustained iteration speed even in a hardware context. In The Startup Way, in particular, I give a bunch of examples, including a bunch from old school manufacturing contexts that have applied these techniques successfully.