I suppose with that line of thinking, crop circles are human hoaxes and archeological anomalies do not exist and the Atacama skeleton is just a dwarf. Wiki leaves out detail and has it’s own bias. One doesn’t have to be a believer for the facts in the Sirius documentary to be pretty compelling as well as the context by which out-of-place artifacts are discovered. All hoaxes? Maybe some can be explained but to dismiss them all is not looking at the hard evidence. Have you seen the designs of some of these complex crop circles forming overnight, without sound nor light nor machinery? Two drunk pranksters with a board was debunked long ago.