Is there an external reality? Is reality objective? Is the information your senses are feeding you an accurate depiction of reality? Most neuroscientists and scientific leaders believe that we can only comprehend a sliver of what is true reality.
Although we assume our senses are telling us the truth, they're actually fabricated to us. Considering senses are unique from person to person, and through our unique senses we can only intemperate a fraction of what is real, there is no all-encompassing and true perspective one individual can hold. Because of this, we need to take our perceptions seriously, but not literally.
My view: Is there external reality? Of course there's an external reality. The world exists. It's just that we don't see it as it is. We can never see it as it is. In fact, it's even useful to not see it as it is. And the reason is that we have no direct access to that physical world other than through our senses. And because our senses conflate multiple aspects of that world, we can never know whether our perceptions are in any way accurate. It's not so much do we see the world in the way that it really is, but do we actually even see it accurately? And the answer is no, we don't.