I take heart when reading about recovered parts of expensive ashes.

But I firmly believe that no project is wasted especially one that pushed the boundaries of what is commonly done. All the people working there learnt something. They might apply their new found knowledge to other fields or future carriers. The money invested is not lost but converted into bigger brains.

I look at VC money in much the same way. It's not great when a startup fails. But a lot is learnt.