Essays on UFOs and Related Conjectures invites readers to reflect on their beliefs and intuitions concerning extraterrestrial intelligence. The essays in this collection explore the extraterrestrial UFO hypothesis, optimized futures, and possible motives for a hypothetical extraterrestrial presence around Earth. Some of the essays also delve into the potential moral implications of such a presence. Overall, this collection makes a case for taking the extraterrestrial hypothesis seriously and for further exploring the evidence, theoretical considerations, and moral implications that may relate to this hypothesis.

The essays found in this collection are the following:

• What credible UFO evidence?
• Can we confidently dismiss the existence of near aliens? Probabilities and implications
• What might we infer about optimized futures?
• From AI to distant probes
• Silent cosmic rulers
• Why UFOs matter
• Comparing UFO origin hypotheses: Ancient Earth vs. ET and intra- vs. intergalactic

The book is available as a free PDF (1st edition; 2nd edition with a new chapter). It is also available for free on Amazon, Smashwords, Apple Books, Barnes & Noble, and elsewhere.

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