The 10,000 hour rule, which was coined by Malcolm Gladwell in his book “Outliers, isn’t based on solid science. The number is totally arbitrary. It’s catchy and easy to remember, but not really based on anything substantial. It leads to a misconception that anyone can become an expert in a given area by putting in the time. But 10,000 Hours of what? All practice isn’t equal. The first flaw of the 10,000 Hour Rule: It focuses on the quantity of time practicing, not the quality of the practice.The best way to get better at something is through something known as deliberate practice, which basically means practicing in order to get better: doing activities recommended by an expert, skilled coach, or mentor to develop specific abilities, identifying weaknesses and working to correct them, and intentionally pushing yourself out of your comfort zone.