This statement is simple absurdity. I can think of no way to justify it. If there is no difference, then why would digital imaging ever have been invented? By your statement, even inventing it would be impossible to do, because it's the same thing as chemical photography, so if it's "one and the same" then it can't justifiably even be said to have been invented or to exist.
It is identical, the function is the same, there is no segregation of 'analogue photography' and 'digital photography' they are one and the same
More absurdity. You may want to do some basic reading on how digital imaging works. There is this new thing called a "pixel". It's pretty revolutionary from what I understand.
'Digital photography' is also analogue, the photography part of a digital camera, is in fact analogue, pure and simply.