Dr. Mark Humphrys

School of Computing. Dublin City University.

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My big idea: Ancient Brain

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What is Life?


Is a 3 month old embryo alive?

Is a 2 week old embryo alive?

Is a fertilised egg alive? Were you alive when you were a fertilised egg?

If you are alive now, and once you were not, when exactly did you become alive?


If living things exist on earth now, and once they did not, when exactly did living things start to exist?


Are spiders alive?

Are amoebae alive?

Are bacteria alive?

Are viruses alive?

Are mitochondria alive?

Are crystals alive?

Are rivers alive?


Are robots alive?

Are computers alive?

Are automobiles alive?

Are steam engines alive?


Is life about reproduction? Is a sterile human alive?

Maybe it's about arising from reproduction? If we took a copy of you by copying all the atoms of your body, would the copy be alive?


ancientbrain.com      w2mind.org      humphrysfamilytree.com

On the Internet since 1987.

Wikipedia: Sometimes I link to Wikipedia. I have written something In defence of Wikipedia. It is often a useful starting point but you cannot trust it. Linking to it is like linking to a Google search. A starting point, not a destination. I automatically highlight in red all links to Wikipedia and Google search and other possibly-unreliable user-generated content.