Not sure I agree with the analysis, although I do agree with the conclusion. We've only known there's a pervasive limit for a century. We've known for a few de

Not sure I agree with the analysis, although I do agree with the conclusion. We've only known there's a pervasive limit for a century. We've known for a few decades that the limit is quite subtle i.e. the violation of local realism. It's not at all difficult to imagine that there is more to know in this field. I mean, it took 200-odd years before Newtonian mechanics was supplanted. So there's form. Also, you don't need to go faster than light as long as you don't go back. If alien explorers are going at a decent fraction of light speed, they can get a fairly long way in a sensible timespan for them. Just not for the folk back home. My objection to the conspiracy theory idea is that it just doesn't make any sense. They drew huge pictures and built great monuments then got shy. They now play peekaboo with rednecks and the odd fighter pilot. Governments could be covering up alien tech from a long gone race but one that's still here? A race that they collude with but let out to do a bit of probing because, presumably, the government can't find bodies for them. So nah. They're not here but it's not technically inconceivable that they haven't been in the past or won't be in the future. It just doesn't seem very likely.