Hi Matthias!

I've been keeping quiet lately because I know you are incredibly busy and I wanted to minimise any distraction.  I am just taking a moment to say that you really don't need to concern yourself with missed deadlines or anything like that.  What you are building is unique, a world first. Of course it will take a long time. Of course it will not go strictly to plan.  Who cares?  I don't!  Just keep up your excellent work and deliver the product when YOU are sure it is ready.

Take care.