Say that a mind is 'substrate independent', can it genuinely inquire into the meaning of being? It would seem that for such a mind the distinction between a foundational reality and a virtual reality would has no sense whatsoever. But this does not prevent it from having an element in thought called 'being' and with all the usual associations for such a thought element. For such a mind that its own being could be an issue and a question for it poses no difficulty, even given that it has no clear sense of foundational being within its view. And if you were such a mind could inquiry into being lead you to an understanding of your own 'substrate independent' (SI) nature? That understanding would not itself be SI, but it need not be a result of a certain train of thought as much as something that this train of thought prepared it for. In other words, to thoroughly comprehend that all thought has a SI nature is the only position from which a non-SI understanding could dawn - even if in fact it never does.