Vaclav Smil on why we need manufacturing, vegetarianism, and less innovation

When Bill Gates says:

I’ve talked before about my favorite author Vaclav Smil. He doesn’t pull any punches in this @WIRED interview

I know it will be an interview worth reading. So I head over and find an excellent interview with Vaclav Smil

Here are some excerpts:

Let’s talk about manufacturing. You say a country that stops doing mass manufacturing falls apart. Why?

In every society, manufacturing builds the lower middle class. If you give up manufacturing, you end up with haves and have-nots and you get social polarization. The whole lower middle class sinks.

and

Restoring manufacturing would mean training Americans again to build things?

Only two countries have done this well: Germany and Switzerland. They’ve both maintained strong manufacturing sectors and they share a key thing: Kids go into apprentice programs at age 14 or 15. You spend a few years, depending on the skill, and you can make BMWs. And because you started young and learned from the older people, your products can’t be matched in quality. This is where it all starts.

On food:

Your other big subject is food. You’re a pretty grim thinker, but this is your most optimistic area. You actually think we can feed a planet of 10 billion people—if we eat less meat and waste less food.

We pour all this energy into growing corn and soybeans, and then we put all that into rearing animals while feeding them antibiotics. And then we throw away 40 percent of the food we produce.

Meat eaters don’t like me because I call for moderation, and vegetarians don’t like me because I say there’s nothing wrong with eating meat. It’s part of our evolutionary heritage! Meat has helped to make us what we are. Meat helps to make our big brains. The problem is with eating 200 pounds of meat per capita per year. Eating hamburgers every day. And steak.

You know, you take some chicken breast, cut it up into little cubes, and make a Chinese stew—three people can eat one chicken breast. When you cut meat into little pieces, as they do in India, China, and Malaysia, all you need to eat is maybe like 40 pounds a year.

On “innovation” as the solution to all our problems:

“Let’s not reform the education system, the tax system. Let’s not improve our dysfunctional government. Just wait for this innovation manna from a little group of people in Silicon Valley, preferably of Indian origin.”

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Awesome GIFs of Scientific Experiments – great to show your kids

This article shows a bunch of animated gifs of some awesome scientific experiments. You will not really learn anything from the article, but it is great stuff to show your kids – just for the heck of it.

Here is an example image:

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Superstitions evolved to help us survive

Superstitions evolved to help us survive according to this New Scientist article.

Darwin never warned against crossing black cats, walking under ladders or stepping on cracks in the pavement, but his theory of natural selection explains why people believe in such nonsense.

The tendency to falsely link cause to effect – a superstition – is occasionally beneficial, says Kevin Foster, an evolutionary biologist at Harvard University.

For instance, a prehistoric human might associate rustling grass with the approach of a predator and hide. Most of the time, the wind will have caused the sound, but “if a group of lions is coming there’s a huge benefit to not being around,” Foster says.

Foster and colleague Hanna Kokko, of the University of Helsinki, Finland, sought to determine exactly when such potentially false connections pay off.
Simplified behaviour

Rather than author just-so stories for every possible superstition – from lucky rabbit’s feet to Mayan numerology – Foster and Kokko worked with mathematical language and a simple definition for superstition that includes animals and even bacteria.

The pair modelled the situations in which superstition is adaptive. As long as the cost of believing a superstition is less than the cost of missing a real association, superstitious beliefs will be favoured.

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