This is like the "how hard would it be to clone Dropbox" comment. Everything looks easy at first glance, the devil is in the details. Boat manufacturers work on

This is like the "how hard would it be to clone Dropbox" comment. Everything looks easy at first glance, the devil is in the details. Boat manufacturers work on relatively small R&D budgets too, there are usually only a few engineers involved. I'm sure there are hundreds of startups that are going no where but spend more on engineering than these guys.