Tag: Simplicity

How life begins

The gap has been closing little by little from both the astronomical and biological sides. But though it’s narrower now than ever before, it’s still a gap.

How did life begin? It seems possible, even very likely, that simple chemistry has the potential to generate life given the right conditions and plenty of time.

There’s always been a big puzzle over the origin of life here on Earth. Life is everywhere and in a vast array of forms. From the simplest archaea and bacteria, to the giant redwood and the humble grass in the field, the blue whale down to the smallest mite. So rich in variety, so wide in its presence from the deepest oceans to the highest mountains. Life is amazing!

The processes of evolution are well understood and impossible to deny; so puzzles over the many forms of life, its adaptability, and changes in the forms we see coming and going over deep time are clearly understood and well explained by biologists. (When did you last see a dinosaur?)

But how did it all start?

Ah! That has always been the unexplained mystery. Once we have a simple, replicating form of life on the planet we can see it might thrive, spread and grow in complexity.

There are various proposals. Perhaps it arrived in an asteroid kicked off Mars or somewhere else. But that does no more than move the origin to a different place in the Solar System. Maybe it all began at mid-ocean ridges where hot mineral-laden springs flow from hot rock layers below the surface. Perhaps, yes.

We know that many of the precursors for life exist out among the stars. Here in the Solar System, comets and asteroids are often richly endowed with amino acids, ribonucleotides, and all sorts of smaller precursors. These are the building blocks of proteins, RNA, DNA and so forth. We understand how these precursors can form spontaneously given simpler materials like water, methane, ammonia, compounds including atoms of phosphorus, sulphur and so forth. It just takes chance interactions, time, and a source of energy like ultraviolet light. The basic ingredients are there in the gas clouds that condense to form new stars and the material orbiting in disks around them.

All of these things are fairly well understood, but there’s a gap in our understanding between the presence of the components and the presence of life. The gap has been closing little by little from both the astronomical and biological sides. But though it’s narrower now than ever before, it’s still a gap.

Life in a computer?

Well, yes! And, no.

Some clever work by Blaise Agüera y Arcas, a Google vice-president of engineering, has uncovered an intriguing process. Setting a very simple ‘machine’ running random code (no meaningful program whatsoever) and waiting for something to happen, shows that eventually some very simple self-replicating code will appear in the system, and once it exists it replicates very quickly and then slowly increases in complexity. It’s not biological life of course, but it has all the qualities that we would recognise as lifelike. It replicates itself, different forms of replicating code compete with one another, they evolve, and they grow more and more complex. This doesn’t show us in any detail how biological forms got started, but it demonstrates that self-replication could happen in principle, and given enough time that it’s almost inevitable.

For the detail and background you should listen to Sean Carroll interviewing Blaise, the conversation is absolutely fascinating.

See also:

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Every chapter is necessary

There is a synergy, a sparking of abundant life that comes from the interdependence of the parts.

A page from the book

This is a slightly modified copy of an article I wrote in 2014. I’m republishing it because I think it is still useful and deserves another airing. Perhaps it hints at some things we are liable to forget.

The book, Simple Church: Unity Within Diversity, contains twenty-four chapters. Each one discusses a positive aspect of church, something that is an essential part of the whole. Reading from the book I was deeply impacted by Chapter 22 from Kathy Escobar; the chapter is entitled A church that restores dignity where it’s been lost.

She writes:

Jesus calls [Lazarus] out of the tomb, but then he looks to the people around him – his community, friends, and advocates – and says to them ‘unbind him’. Unbind him. Unwrap him. Take off his graveclothes.

I think God calls us to participate in this uncovering-unwrapping-unbinding with each other through healing community.

And it struck me that although church is much more than the sum of its parts, all of the parts need to be actively present. There is a synergy, a sparking of abundant life that comes from the interdependence of the parts. Church is a person, the Bride of Christ.

Like all people, you and I are much more than the sum of hands, ears, spleen, heart, lungs and all the rest. But if any of these were missing we would either die or be unable to fully function. And it’s just the same with the church.

Just consider some of the other chapter themes. The church cherishes Jesus Christ, exhibits personal holiness, counts every member as key, assembles for mutual edification, and knows eternal life is free. Imagine all of those being true in a church that fails to restore dignity where it’s been lost. It would be a church without the active compassion necessary to unbind those who so desperately need it.

Or consider a church that clings to scriptural truth, is most notable for its love and is united in Christ but doesn’t follow the lead of the Holy Spirit. This would be a church that failed to hear where to go and what to do and did everything in its own strength.

Or what about a church that was composed of peacemakers, viewed itself as a people, restored dignity but failed to proclaim the gospel clearly?

The chapters of this book all stand alone and can be read alone. But they often overlap so that there are echoes and glimpses of them in one another. Yet taken together, with no part missing or inactive, they describe a holistic church, a wholesome church and a church that is alive and active and effective in the world. There are other aspects that are not explicitly covered in the book, prayer for example. But these are implied throughout in a variety of ways.

Church is as complex as any living organism, and just like a living organism it is not only complex but also multi-faceted, and astonishingly well constructed. The church is also alive with the life of Christ. And every part contributes!

Find the book on Google Play Books and on Amazon Books.

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If you enjoyed this or found it useful, please like, comment, and share below. My material is free to reuse (see conditions), but a coffee is always welcome!