I have no doubt that there is an objective reality. Physics shows us that reality is weird and unintuitive, and we don't fully understand it. The mere existence

I have no doubt that there is an objective reality. Physics shows us that reality is weird and unintuitive, and we don't fully understand it. The mere existence of consciousness also raises big questions about the true nature of reality. But still I have no doubt there is an objective reality., There is massive amounts of evidence that show the universe evolved (matter condensed to form stars which formed heavier elements which formed planets and organized into galaxies ...) and also that life evolved (single celled organisms to multicellular organisms to animals which eventually gave way to sentient life). Why would there be such substantial evidence for any of this if there were no objective reality? If I take a psychedelic drug, my conscious experience is significantly altered. Why should that happen if there were no objective reality? Why should a chemical be able to have such a huge effect on my conscious experience if it "doesn't objectively exist"? Why should there be such a strong correlation between patterns of brain activity and our conscious experience if there were no objective reality? Why should the brain be organized into regions with well defined functions if there were no objective reality? Why should sensory organs be able to take in information from the environment through well understood physical processes, and transit that information through well structured nerve endings to the proper regions of the brain, if there were no objective reality? I don't claim to know the true nature of reality, far from it. I merely posit that there is an objective reality.