Why Some(null) isn't considered None?

Question

I am curious:

scala> Some(null) == None
res10: Boolean = false

Why isn\'t Some(null) transformed to None?

Answer 1

As a simple thought experiment, consider two lists of Strings, one of length 5 and one of length 20.

Because we're running on the JVM, it's possible to insert null as a valid element into one of these lists - so put that in the long list as element #10

What, then, should the difference be in the values returned from the two following expressions?

EDIT: Exchanged get for lift, I was thinking of maps...

shortList.lift(10) //this element doesn't exist
longList.lift(10)  //this element exists, and contains null