interesting statement i don't think there's any one definitive statement of their nature, we're dealing with a great many different phenomena, an entire category of phenomena, all interacting with physics that are outside our current mainstream paradigm/understanding of how the world works. some are likely natural phenomena akin to ghosts, like you said- i have seen this described as "tape loops" imprinted on the spacetime fabric, not really conscious or autonomous. hessdalen lights appear to fit this profile. the literature on ufo-type "ghost lights" appearing regularly on ley lines is a good source if you want to read more on this.  some might well be plasma-based lifeforms (lightforms?) like the sts tether space mission incident- something like conscious ball lightning-  some are 100% classified military projects, created by various factions and nation states (imo this is probably what the nj + uk drones are, judging by their time-proximity to escalation in the middle east and eastern europe). most of what we know as ufo abductions are probably "milab" military abductions/close encounters. grusch, mellon, elizondo and other glowing shills are pushing the "ufo threat" narrative, probably to get people to freak out and accept a central banker-controlled one world government at some point in the near future. fake and gay. i recommend martin cannon's "the controllers" to learn about the earlier era of this milab phenomenon, or the literature on black helicopters and cattle mutilations- the factions behind this are likely the same ones running the underground military bases, etc  some are probably ayyyliens, both interplanetary and interdimensional (and, included in this category is the "operation trojan horse" planetary/interdimensional superconsciousness theory promoted by people like jacques vallee and john keel) and some sightings/encounters are probably "other"
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