If there were limits to sense how could we say them?
If there were limits to the thinkable how could we think them?
But it doesn’t follow that what can be said or thought is limitless either. We can notice certain situations in which we think we’re thinking or making sense but we aren’t, and become sensitive to these sorts of failures in the future.
Is pointing out the limits of the thinkable like pointing out the limits on business proposals? There isn’t am algorit for what proposals will be successful, but proposals that are too vague are less likely to make money. And if they do they just got lucky.
But what counts as the analog of making money for thinking? What is a successful thought?