Updated State of the Lambda

[Brian Goetz]

> Another solution would be to use the abstract keyword, perhaps at the
> end in place of "default none".

No, that already means something (actually, it is defined to mean 
nothing in that context.)

I think you should make sure you understand the feature as designed 
better before declaring that getting rid of it would "make perfect sense."

If you don't understand the feature as designed, you can ask.  Or you 
can wait for the more detailed explanation that is surely forthcoming, 
but just hasn't arrived yet.