Casey was diagnosed with bipolar disorder. During her manic episodes she often experienced an unparalleled amount of joy, and she excitedly told everyone she met that she was going to "change lives" across the world by creating the cures for the most deadly diseases. Her roommates noted that she often stayed awake until 3 or 4 am journaling. When asked what she was writing about, she claimed it was the "science behind the cures," but when her roommates looked at the journal, it appeared to be a jumble of unrelated sentences. Which of the following DSM-5 criteria for a manic episode best captures the content of writing in Casey's journal