There are infinitely many languages โโthat no TM can solve. Indeed, the โmajorityโ of languages โโare unsolvable; there are many solvable languages, but uncountably many languages โโ(hence, uncountably many unsolvable).
Rice's theorem allows you to come up with many examples of languages โโthat are unsolvable. See Wikipedia Page: Rice Theorem
Basically, if you have a set of non-trivial languages โโ(i.e. there are TMs that recognize languages โโin the set, and TMs that recognize languages โโin the set), then it is unresolvable whether an arbitrary language TM is in S. For example, let S is a set consisting of an empty language. Then it is impossible to decide whether an arbitrary TM accepts an empty language, i.e. There are no lines. Come up with any non-trivial set of languages, and you have a new insoluble language (all encodings of TMs that recognize languages โโin the set).
Patrick87
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