Furusawa seems like a mad genius especially after reading about all his other hobbies.
Furusawa came across as a developmental engineer at heart. He is damn good at it, and is not afraid to go outside the box too. Once he is actually in retirement, he will get to work on whatever he likes, whenever, and with no deadlines. With his connections at Yamaha, he would probably be able to borrow this or that, and not be as restricted as he would be otherwise. I hope his retirement plan pans out, and he finally gets to play with his toys.
Here are my 2 cents on Furusawa's subliminal messaage:
Lin Jarvis screwed up in losing Rossi. Yamaha needs a deveopment engineer and rider team that can go outside the box to find a way to beat Honda. And Lorenzo is not it. I think Yamaha has runs its course (or close to it) with the package that first appear in 2004 and re-modified in 2008. Honda's current bike development level plus their top riders combination are going to be difficult for Yamaha to fend off with what they have at the moment. In addition, there is a new engine rule coming next year.
I get the impression from Furusawa that Rossi has a gift that allows him to spot potential in MotoGP bike designs before they are in winning form. And Rossi has to do his thing again. But it appears Rossi is not willing to do it with (ungrateful?) Lorenzo around.
Rossi with Furusawa (+Burgess?) were able to make an inline 4 MotoGP bike a winner. I wonder what Rossi is going to do at Ducati. They already have a V4 but a carbon fiber chassis. Furusawa doesn't think carbon fiber is the way to go. It looks like Rossi has to pull another rabbit out of the hat.