You need to read a 10-page report for work. You sit down in a quiet room. You open the document. You read the first sentence: "The Q3 metrics indicate a definitive downward trend..."
Suddenly, the word 'trend' reminds you of a TikTok trend you saw this morning. That reminds you of a song. The song reminds you of a concert you went to in 2018. You wonder what the lead singer is doing now.
All the while, your eyes are physically scanning down the page. Line after line passes through your retinas. You turn the page. You look down at the top of page two and experience a jarring sensation of complete amnesia. You "read" an entire page, but the data never entered your consciousness.
Frustrated, you go back to the top of page one. You try again, forcing yourself to concentrate. Three lines in, the exact same thing happens. After thirty minutes, you have a tension headache, you feel incredibly stupid, and you still haven't finished the first page.
This is known as 'Reading Paralysis.' For neurotypicals, reading is a singular stream of data. For the ADHD brain, reading is an attempt to force a screaming, chaotic toddler to sit perfectly still in a silent library. The silence and lack of physical interaction with the text create a sensory void. The brain hates the void and immediately fills it with intrusive, high-speed thoughts.