If you incorporated older content, the bias would be much less liberal. It'd be interesting to train one on only pre-1950 content.
Reality has no political opinion and there is no ground-truth about if left or right is 'real'.
I'm left-leaning, but hate the quote just because it dismisses conservatism (which is a legitimately held opinion which is just as valid as liberalism).
The quote about reality having a liberal bias is a joke about how republicans lie a lot and then claim that the courts or the news (or everything, really) has a “bias” against them.
Here is an example for you. Title mentions “brazen corruption” and reading the article they are complaining about… the FBI raiding mar-a-lago to retrieve stolen nuclear documents. Link: https://www.foxnews.com/media/sean-hannity-seeing-brazen-lev...