PhD in natural language processing, with years spent building NLP applications end to end. Moe works on text analysis: lexical and syntactic structure, and what separates machine-generated prose from human prose statistically. He has been experimenting with computational linguistics since the early days of NLTK, spaCy and WordNet, and still writes most of his tooling in Python.
Turnitin's AI writing detector does not read a document as a whole. It segments a submission into chunks, scores each one, averages the results, and only then produces the percentage on a report. This covers that pipeline, what it flags across ChatGPT, Claude and Gemini, what independent testing found it misses, and who actually gets to see the number.
General-purpose grammar tools flag passive voice a methods section needs, hedging language a reviewer expects, and readability scores an argument should not chase. Here is why, plus what Trinka, Paperpal, Writefull, ProWritingAid and LanguageTool are each actually built for, priced from their own sites.
A thesis produces three different kinds of error, and reading it once, start to finish, is the method most likely to miss all three. Here is why proofreading your own work defeats normal reading, what each of three separate passes actually catches, and the tricks that make familiar sentences look unfamiliar enough to see.
Six grammar errors show up in research papers more than anywhere else, because academic sentences are built to hold more qualification than an everyday paragraph can carry. Here is the mechanism behind each one, a wrong-and-fixed example, and what a free grammar checker can and cannot catch on its own.
Oxford University Press spells organize with a z in British English, on etymological grounds, which is why the convention is called Oxford spelling rather than an Americanism. A closed set of verbs, advertise and surprise among them, never takes -ize under any style, for a completely different reason worth knowing before a proofread turns a correct spelling into an error.
Colour and organize and analyse can each be correct and still be wrong together in the same document. Four recurring patterns explain most of what separates British and American spelling, a short list of words breaks the patterns outright, and one rule decides whether a submission passes: consistency with whatever convention the target actually specifies.