The original sentence:
We set out to explore how it is that we can all live in the same universe yet see reality so differently.
The compared sentence:
We set out to explore how we can all live in the same universe yet see reality so differently.
I would like to know the meaning and usage of the phrase "how it is that". In particular, I would like to know:
A:
What is the difference in meaning between these two sentences?
B:
What is a possible answer to that how-clause?
Because of how, an adjective is chosen.
I guess...
It is amazing...?
C:
Is "how it is that" considered as a standard pattern?
D:
Are there other usages of that pattern?
such as
"It also showed me how it is to be a student."