Write with precision and clarity: TOK is all about communication, and it is essential that the essay is readable.
It should have a depth of insight, and a breadth of application. Many of the best essays have been 2,500 words for a first draft, and then cut down to a point where not a word is wasted. Since there is a danger of
a TOK essay floating off into empty abstractions, you should, where possible, try to be precise rather than vague. While you may need to qualify some of your assertions, if you are too vague and hedge qualifications around with too many caveats, you will end up not saying anything. Be particularly cautious with words like ‘clearly’, ‘proves’ and ‘all’, which are often misused or inadequately justified. Lastly, it should also be able to be understood by anyone. If it is not, it probably is not very good.