Well I don’t believe matter or spacetime objectively exist, so I don’t think gravity objectively exists either. To borrow from Donald Hoffman’s language, I take gravity seriously but not literally. I know that gravity represents something which is important to our species’ survival, which is why we all perceive it. But I do not think it is as simple as we perceive it to be with our eyes. I do not think it is even as simple as Einstein described it. I think the truth is much, much more complicated.