"For instance, the study shows how newer models have a greater-than-99 percent approval for President Joe Biden, even though public opinion polls show a much more mixed picture. In their work, the researchers also found some populations are underrepresented in the data—those age 65 or older, Mormons, and widows and widowers, just to name a few. The authors assert that to improve credibility, language models should do a better job of reflecting the nuances, the complexities, and the narrow divisions of public opinion."