Not sure where you’re trying to go, or if I’m understanding you correctly, but I’ll say no, it isn’t. I can conceive of a world (reality) that doesn’t include thought, but comprehension requires thought, so you may be right depending on how you meant the last sentence. Without thinking we cannot comprehend anything, but we can imagine a reality where thought didn’t exist (I.e. Earth pre-life, post apocalyptical Earth, etc.).

Not sure where you’re trying to go, or if I’m understanding you correctly, but I’ll say no, it isn’t. I can conceive of a world (reality) that doesn’t include thought — Pinprick

Says the thinking being.....

Well, yeah, but just because I think doesn’t mean it’s fundamental to reality. It’s fundamental to comprehension, and possibly even experience, but there’s nothing to suggest without “thought” reality wouldn’t exist. In fact, wouldn’t something have to of existed prior to thought?