1. Most of the simplifications are regular. 2. You only need to know several thousands. 3. Chinese uses no cojugation (I guess you meant something else). All

1. Most of the simplifications are regular. 2. You only need to know several thousands. 3. Chinese uses no cojugation (I guess you meant something else). All languages has homophones 4. That's good. That's why you only need several thousand words. 5. I'm not sure what you mean. 6. It simply doesn't convey tense most of the time. Those tens of thousands is what you get if you count the most obscure characters you can find, that nobody really uses.