I normally speculate more likely possibilities but obviously there is no reason to assume statistics have a change against destiny. At any level thing may look ridiculously coincidental. There is no reason to assume an encapsulating more plausable explanation.
Maybe aliens responsible for controlling or shaping earth in past went extinct and their A.I. assistant is in charge of the world. It can be speculated that some people had some awareness in past and developed obfuscated/different langauges to bypass this assistant. It may be adaptive but maybe it is not adaptive enough it is not the actual A.I. and rather a model developed for current conditions updated time to time. Obviously very unnecessary speculations but when I am not on peganum harmala the alien stuff is kinda depressing or overwhelming or I feel weird about it. I wouldn't be thinking about at all. It is kinda ideas I had when using peganum harmala about aliens ghosts me later. Ancient people were using it in religious context. Maybe peganum harmala surpresses some form of biological agents. It is also used as anti parasitic.
It ban be also speculated that recently different aliens took over the previous aliens. (I tend to favor this possibility :D ) It is plausable to speculate that they took over the previous aliens by they didn't or couldn't disable the autonomous agents of previous aliens controlling this world. Maybe named Karma :D. Because they can't replace it. Until they bring a fleet here.
Maybe there are actually no aliens have had interfered or interfering with Earth but this possibility seems very low.