Actually it’s not bunkum at all but a little essay about bromides and bunkum.
“Bromides are very often mixed with bunkum, and bunkum is not simply nonsense. As you may know, the word bunkum (and bunk) entered our vocabulary in 1820, when Felix Walker, a congressman from North Carolina, rose in the House and delivered an irrelevant speech that he hoped would impress his constituents back in Buncombe County. The irrelevance of Walker’s speech was particularly striking, and unwelcome, because he chose to deliver it in the midst of the heated debate leading up to the Missouri Compromise. In one version of the story, some irritated congressmen had begun to leave the chamber when Walker told those who remained that they might leave as well, since he “was only speaking for Buncombe.”
https://orthosphere.wordpress.com/2019/02/13/bromides-and-bunkum/