In a letter written in 1657, Blaise Pascal famously said “I have only made this letter longer because I have not had the time to make it shorter.” There is a deep truth in this seemingly ironic statement.
When you are trying to convey your ideas to people, it can be fun to go on at great length. But throwing the kitchen sink at the problem can easily become a form of mental laziness.
To condense your message down to a few well chosen sentences — that is the greater challenge. If you find that you cannot describe what you want to say in a short and clear abstract, maybe you still have more work to do.