Why does the the human brain ignore the second the?

Have you ever proof-read an essay 10 times before submitting it, but had an extra word pointed out to you? Why does the the brain sometimes ignore these extra words? Shouldn’t errors jump out to us because they’re an anomaly? Let’s get into it!Sources:[Saccades and Eye Movements]https://link.springer.com/article/10.3758/s13414-011-0219-2https://www.ncbi.nlm.nih.gov/books/NBK10991/https://youtu.be/D_y56PQvZZAhttps://youtu.be/nwyPFmT5PDwhttps://youtu.be/w9l-IZbX1NIhttps://youtu.be/CvpJkMrAxjIhttps://youtu.be/2LcXltCIRGYhttps://youtu.be/rRDDKKqkdTg[Parafoveal Vision and Information Gathering]https://www.sciencedirect.com/science/article/abs/pii/0042698973900412[Word Skipping]https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3543826/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4288050/https://youtu.be/8gi5TE5rTSYhttps://youtu.be/4mKbXBYcPA0https://youtu.be/bQfyCg0i8sU[Other Sources]https://youtu.be/rTDTrFhV_CUhttps://media.giphy.com/media/z8rEcJ6I0hiUM/giphy.mp4https://media4.giphy.com/media/ZIG63RdogLgqI/giphy.mp4https://media.giphy.com/media/LNqJlnwORbOYhu7txQ/giphy.mp4https://youtu.be/eCKzNkW5GMIhttps://media.giphy.com/media/w6TfGhqQCvk7m/giphy.mp4https://media.giphy.com/media/13rQ7rrTrvZXlm/giphy.mp4https://media.giphy.com/media/111ebonMs90YLu/giphy.mp4https://media.giphy.com/media/hCadYk8kGZ2Io/giphy.mp4https://media0.giphy.com/media/lmftWb5zQqxQk/giphy.mp4https://media.giphy.com/media/KxzKGZJrYeILmlr9UA/giphy.mp4https://media.giphy.com/media/3orifcfs0W3p2JExyM/giphy.mp4https://media.giphy.com/media/581WiiNXyFdhLD4eaS/giphy.mp4https://youtu.be/h8-IW7Y5qmohttps://youtu.be/EOeo8zMBfTAhttps://media.giphy.com/media/l3vRlk73Ka7WApZW8/giphy.mp4https://media.giphy.com/media/qKltgF7Aw515K/giphy.mp4https://media.giphy.com/media/3oz8xPyx3qgq5jAmMo/giphy.mp4[Brew’s intro song]Manhattan Twist by Avocado Junkie