Yes, but making it more nuanced still doesn't change the point.

Singularity obviously never happened before, and if anyone bothered to read up on what they're talking about, they'd realize that no one is trying to predict what happens then, because the singularity is defined as the time when changes accelerate to such a degree that we have no baseline to make any predictions whatsoever.

So when people speculate on when that is, they're trying to forecast the point forecasting breaks; they do it by extrapolating from known examples and trends, to which we do have baselines.

Or, in short: we know how it is to ride an exponent, we just never rode one long enough to fall off of it; predicting singularity is predicting when the exponent gets steep enough we can't follow, which is not unlike predicting any other trend people do. Same methods and caveats apply.