Part 5/8:
Both experimenters noted startling visual differences by the end of the month. The jars labeled with positive words ("thank you" and "thank you jar") remained relatively clean, whereas those associated with negative words ("I hate you" and "you're stupid") developed moldy films and visible decay.
Bob remarked on the smell test—warning that the moldy jars emitted a foul odor—highlighting the biological changes taking place. Interestingly, his "thank you" jar was noticeably fresher and cleaner than Paul's, possibly due to differences in placement and environmental exposure.