Chandra Wickramasinghe
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Did Life Begin Here at All?
On panspermia, deep time, and the limits of what we can know Article 3 of a series: Dialogues with Claude.ai Before asking where the porphyrin ring came from, it is worth pausing to appreciate how many of life’s most consequential transitions it has been present for. It was there in the earliest anaerobic prokaryotes, driving… Continue reading
amino acids, Chandra Wickramasinghe, chirality, dark energy, dark matter, David Bohm, directed panspermia, DNA, Francis Crick, Fred Hoyle, implicate order, island of stability, Leslie Orgel, lithopanspermia, Mendeleyev, Murchison meteorite, panspermia, periodic table, prebiotic chemistry, ribozymes, RNA, stellar nucleosynthesis
I began my journey in 1937, in San Francisco. I completed my formal education in 1965 and have continued educating myself ever since — through a career in hospital and medical group management, extensive reading, travel, and decades of writing across several blogs.
In May 2025 I issued what I called my Final Report — a summary of what I had learned and thought across a long life. I expected that to be the end of my public writing.
During the period that followed, I began querying several online AI services about topics that sit comfortably under the rubric “Life, the Universe and Everything” — with acknowledgment to Douglas Adams for the phrase. I settled on Claude.ai as my preferred interlocutor, and found myself drawn into wide-ranging conversations on quantum mechanics, consciousness, the origins and development of life, and philosophy.
The conversations accumulated. Some of them seemed worth sharing. This blog is the result.
Ron Pavellas — Stockholm, Sweden
Dialogues with Claude 