Do you have DNA to RNA translation worked out for your new genetic language?
Do you have some ribosome that serves as the site of biological protein synthesis (translation) for your new language?
Now, that would make some real landmark.
But. The most important wall on this way is an ability to use so strong a programming language. We may invent a lot of really cool programming languages we just don't know how to use to any sensible purpose, you know...
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