 One apparent difficulty concerns the assumption that to have sense is just to be true or false. How can such a view be attributed to the Wittgenstein of the Tractatus given his view that tautology, which is true, and contradiction, which is false, are without sense (sinnlos) (4.461)? The seeds of an answer may be contained in a remark from Wittgenstein’s lectures at Cambridge during the year 1934–1935. Looking back on what he’d written in the Tractatus, he says: