Given that it seems every answer to this question is that it is "impossible to predict the outcome of a chemical reaction." Is chemistry just trial and error? Given how fundamental and revolutionary a simulator capable of predicting possible outcomes of a reaction would be, why has it not been done yet? Do you think it will ever happen?

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    $\begingroup$ A useful computational method like CCSD(T) scales with $N^7$. Even if the Computers get more and more power, those methods will aways be extremely expensive $\endgroup$ – Fl.pf. Oct 28 '17 at 10:18
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    $\begingroup$ Possible duplicate of Software for predicting chemical reactions $\endgroup$ – paracetamol Oct 28 '17 at 11:41
  • $\begingroup$ This isn't necessarily a duplicate if one focuses on the machine learning aspect. $\endgroup$ – pentavalentcarbon Oct 28 '17 at 15:42
  • $\begingroup$ @penta Then that would make the question off-topic for other reasons O:) $\endgroup$ – paracetamol Oct 28 '17 at 16:41
  • $\begingroup$ @paracetamol I disagree. Machine learning now plays a large role in chemistry, and can predict reaction outcomes. See dx.doi.org/10.1021/acscentsci.7b00064 for just one of many examples. $\endgroup$ – pentavalentcarbon Oct 28 '17 at 17:04

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