Here's why:
* Independent Clauses: The sentence contains two independent clauses:
* "Keeping a journal is satisfying"
* "You prefer taping your thoughts to writing them down"
* Comma Splice: A comma splice occurs when two independent clauses are joined only by a comma. This is grammatically incorrect.
Here are some ways to fix the comma splice:
* Use a semicolon: Keeping a journal is satisfying; you prefer taping your thoughts to writing them down.
* Use a coordinating conjunction: Keeping a journal is satisfying, but you prefer taping your thoughts to writing them down.
* Use a period: Keeping a journal is satisfying. You prefer taping your thoughts to writing them down.
* Use a conjunction with a comma: Keeping a journal is satisfying, and you prefer taping your thoughts to writing them down.
Let me know if you'd like to see any of these corrections applied to your sentence!