You can ask it a follow-up question for sources. However, it's hit-and-miss. In a few cases, I've seen it give citations to things that clearly never existed.

You can ask it a follow-up question for sources. However, it's hit-and-miss. In a few cases, I've seen it give citations to things that clearly never existed. For example, I asked it for US auto-pedestrian death statistics. It printed out a nicely formatted table. Then, I asked it for a source. It pointed me to a specific table on a dot.gov page. The table didn't exist and, according to the Wayback Machine, it never did. I ended up finding the information the old-fashioned way, and numbers that it gave were way off. I suspect the majority of folks won't be bother to fact check the data it returns. It's going to be a problem.