Everything about aliens past and present is consistent with the Bible's description of demons. Because they oppose truth, everything they do and say is calculated to engage levels of deception, like sophisticated wartime triple-agent disinfo. Never accept any of their comms. Throughout ufology there is one constant: aliens never attack mature believers in Jesus. (It's been observed they even respect boundaries between nations in their appearances, though those boundaries are not printed on our planet.) Like vampires, they cannot operate outside of some kind of human permission. They are invading America lately because our representatives gave them permission, requiring We The People to rescind that permission personally when necessary, which can only be done by placing ourselves under the blood of Christ.

Almost everything about time travel in popular culture is actually multiverse fantasy, not true time travel. The stories are about entering a universe with slightly different constraints, and this is perceived as a branching that occurs due to time travel, but the problem is that neither the multiverses nor the branching nor the travel follow classical physics rules. (Do the people you left behind cease to exist when you enter the alternate timeline, or do they go on without you?) More recently (unless you're Asimov), time travel stories try the single-universe method where, whatever you do, only one story actually happens and you can't change it; though less intuitive, this is actually consistent with physics, and some such stories are very rewarding. Much better than fantasizing about "what if" something had happened differently, there is fantasizing about what if what we do now changes the meaning of what happened so that the effect is different. This is judo.

Of course, there is also intratemporal communication, which is easier because you're transferring information, bits rather than atoms. Since all true time travel depends upon entangled particles, it's easy to send information from the past or future if an entanglement has been established (that's why abductees keep getting hit over the course of their lives, because entanglement with the "stars" has been initiated). In this way Biblical prophets get full and complete pictures of the future (and sometimes present and past) that provide what they and we need to know: because they have been chosen as the entanglement points in the past for receiving data from our day, and transmitting it back to us on fragile papyrus. The Q drops really are modeled on Biblical methods and are a human-sized microcosm of God's eternal plan.