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TagMarcelo Gleiser

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Choosing the High Road or Low Road

Does Science Disprove Free Will? A Physicist Says No

Marcelo Gleiser notes that the mind is not a solar system with strict deterministic laws

One of the most disturbing implications of materialism in modern science is the inference that science disproves the existence of free will. Of course, this is not actually the case, but even the mistaken denial of free will has profound and very disturbing implications for our social structure, our criminal justice system, and our way of government. People who are assumed to lack free will are ultimately little more than cattle to be herded and, as philosopher Hannah Arendt has observed, the denial of free will — and the denial of individual responsibility that follows on it — is a cornerstone of totalitarianism. At Big Think, physicist and philosopher Marcelo Gleiser points to the fallacy that physics and neuroscience disprove…

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The Earth from space. This image elements furnished by NASA.

Astronomer: We Can’t Just Assume Countless Earths Out There

He points out that the Principle of Mediocrity is based on faulty logical reasoning

Dartmouth physicist and astronomer Marcelo Gleiser wrote recently that the Copernican Principle has been misused to imply that Earth is somehow insignificant. That, he says, is a philosophical attitude, unrelated to the science. We don’t know where Earth stands in relation to other planets because we do not yet have telescopes capable of getting much detail about planets outside our solar system. Gleiser, author of The Island of Knowledge (2014), has also tackled the Mediocrity Principle (because Earth is nothing special, there must be countless intelligent civilizations out there). According to Britannica, “Widely believed by astronomers since the work of Nicolaus Copernicus, this principle states that the properties and evolution of the solar system are not unusual in any important…

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collection of alien planets in front of the Milky Way galaxy, nearby exoplanets

Physicist: Copernican Principle Doesn’t Make Earth Insignificant

That, Marcelo Gleiser says, is a philosophical attitude, unrelated to the science

Theoretical physicist Marcelo Gleiser, author of The Island of Knowledge (2014) offers some thoughts on what the Copernican Principle means and doesn’t mean about Earth’s status as a planet — whether Earth is a special place or a pale blue dot. He has no objection to the Copernican Principle (“a cornerstone of astronomy”) as such. The problem, he points out, is what happened next: Copernicus famously proposed that Earth was not the center of the universe; the sun was. The Earth, he suggested, was just another planet orbiting the sun like Mars or Jupiter… The principle, as understood today, is usually stated as, “Earth is an ordinary planet, and we, human observers, are ordinary too.” There is nothing special about…