Sta Hungry Stay Foolish

Stay Hungry. Stay Foolish.

A blog by Leon Oudejans
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Astrobiology-Panspermia

Coincidental vs convergent evolution hypotheses

Thursday's blog made me wonder whether the coincidental and convergent evolution hypotheses agree with or contradict each other. I've written several blogs about convergent evolution (ie, 2018, 2020-2, 2020-3, 2020-4). My initial gut feeling is that both hypotheses do not contradict and may even agree. Let's elaborate. The dominant species in evolution are bacteria....

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Mission, goals, strategy, tactics and operations of viruses

Mission, goals, strategy, tactics and operations of viruses

I think, feel and believe that a main reason for the widely differing micro versus macro perspectives on Covid-19 are the misconceptions on the role of viruses. The other reasons (eg, viral frequency, healthcare capacity) are derivatives of the main discussion.  We know little to nothing about viruses. We don't even know their ageing or origin. Some scientists...

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Did life on Earth start in space? Study finds evidence of panspermia (Big Think)

Big Think title: Did life on Earth start in space? Study finds evidence of panspermia Big Think subtitle: A new study shows bacteria could survive travel from Earth to Mars. Author: Paul Ratner Date: 30 August 2020 "[Summary:] Japanese scientists find Deinococcus radiodurans bacteria can survive for up to 8 years in space. The researchers studied the bacteria...

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The Risk-Reward trade-off

My recent blog on family-owned companies triggered the following remark from my son: "I am not really familiar with the risk-reward trade-off". Initially, I was surprised by his remark as the risk-reward trade-off governs all aspects of our lives (eg, speeding). Each decision that we take is a consequence of considering the upside (reward) and the downside...

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Does alien life exist?

The question in my blog's title might lead to a binary answer: no or yes. The question becomes more difficult once you ask for the definitions of alien and/or life. The Wuhan coronavirus, like all viruses, does not meet our biological criteria for life (my 2015 blog). Astrobiologists Hoyle and Wickramasinghe claim that certain pandemics may be caused...

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Are planets evolutionary lab experiments? (4)

There are many similarities between ant colonies and human societies: consciousness, cooperation, hierarchy, size, specialization, and even wars. Humans study ants. Somehow, it feels unlikely that ants study humans. In terms of mass, the ant (1-5 mg) vs human (62 kg) ratio is 1:21 million. Humans are, however, preoccupied with studying the Universe (eg, age,...

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