Could Synthetic Biology Create Alternative Forms of Life?

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Discussion Overview

The discussion explores the potential for synthetic biology to create alternative forms of life, particularly those based on different biochemistries such as boron-based life or life utilizing solvents other than water, like ammonia or sulfuric acid. Participants also consider the likelihood of such alternative biochemistries arising naturally compared to terrestrial life forms and discuss the feasibility of comparing the probabilities of various life forms using a framework akin to the Drake equation.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants propose the idea of creating synthetic life forms with alternative biochemistries, questioning the feasibility of boron-based life or life using solvents like ammonia or sulfuric acid.
  • One participant suggests that ammonia-based life is more likely than sulfuric acid-based life and notes that there are currently no equations to calculate the prevalence of such life forms.
  • Another participant emphasizes that the stability of chemicals at various temperature and pressure ranges is crucial for the development of alternative biochemistries.
  • There is a discussion about the need for an analog to water that would facilitate metabolic processes in non-carbon-based life forms.
  • One participant mentions that elements similar to carbon in the periodic table may offer the flexibility needed for alternative life forms.

Areas of Agreement / Disagreement

Participants express a range of views on the possibility of alternative biochemistries, with some agreeing on the potential for ammonia-based life while others remain uncertain about the feasibility of sulfuric acid-based life. The discussion does not reach a consensus on the likelihood of these alternative forms of life arising naturally or through synthetic biology.

Contextual Notes

Participants note that alternative biochemistries are largely theoretical at this stage, and there are many factors influencing the stability and development of such life forms that remain unresolved.

Digitalism
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Is it possible to use synthetic biology to create new kinds of life with alternative biologies such as a boron based lifeform or a solvent other than water such as ammonia or sulfuric acid? Alternatively, what is the likelihood of alternative biochemistries arising naturally as compared to life as it has manifested on earth? Is there some sort way of comparing the relative likelihoods of various forms of life arising (similar to the drake equation) based on the prevalence of the various atoms on which they are based?
 
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I think other threads cover creating synthetic biochemisteries. As for alternative biochemisties arising naturally I'd say it's possible. Especially for ammonia or hydrofluoric acid based life. Ammonia being the more likely of those two. Not sure about sulfuric acid though. Currently there are not equations to calculate how common this sort of life may be, but I'm sure one could be found. There are lots of considerations than just how abundant a chemical is. Like at what temperature and pressure ranges are those chemicals stable and in the desired state. The lower the energy state the more time it takes for time to develop. Alternative biochemisteries are just a thought experiment at this point, at least beyond the wide range of biochemisteries that are known on Earth already.
 
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Thank you very much @Ittiz, hopefully others who see this might provide any relevant links that they're aware of
 
There really isn't anything to say that it is not possible. It would seem that such an element would likely fall within the middle of the periodic table (like carbon is), as such elements have great flexibility towards donating, accepting or sharing electrons to achieve a very wide variety of molecules that would be useful for life.

Water works so well as the 'lubrication' of carbon based life because hydrogen bonds are easily broken and then re-established. This allows for metabolic processes, where various chemicals are created in a chain like fashion (one gets converted into another and that product subsequently gets converted into something else, etc). Something other than carbon would require an analog to water that would be compatible with it to facilitate resulting metabolic processes.
 

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