"We can certainly go further than cats, but why should it be that our brains are somehow so suited to the universe that our brains will be able to understand the deepest workings?"

In this quote, Brian Greene is questioning the limitations of human understanding and our place in the universe. He suggests that while we may have the ability to exceed the intelligence of cats, there is no warranty that our brains are capable of understanding the most intricate elements of deep space. Greene questions why it is that our brains seem to be uniquely fit to comprehending the world around us, and whether this is just a coincidence or if there is a much deeper reason behind it. He challenges us to think about the vastness and intricacy of deep space and our own restrictions as human beings.