Answer: The author will write, scribble, fidget, and meet an obstacle.
Explanation: Parallel structure occurs when similar elements, especially verbs, in a sentence are similar to one another. In the correct sentence, "The author will write, scribble, fidget, and meet an obstacle", the verbs, write, scribble, fidget, and meet are similar and are simple present tenses.
Those who move slower and take their time can usually avoid error. Those who move quickly mess things up and can literally “fall.”
That would not be true, since everyone has problems to get through life. Perhaps, the worst issue came with drinking.