those quotation marks around "understanding" are pretty important. to save people a click, and in the hopes that the comments might stay relevant to the OP, th

those quotation marks around "understanding" are pretty important. to save people a click, and in the hopes that the comments might stay relevant to the OP, the OP means this by "understanding": if the video is about a recipe, you can ask how many eggs are used in the recipe, and Bard can give you an answer. it seems pretty likely that this may mean Bard simply consumes video transcripts.