Well, most people say, 4GB is enough. I would not recommend this size as the Windows file takes half of the memory in getting processing and operated. And if you are a writer, you also do research and open multiple tabs in chrome or Firefox. On top of that, maybe you are using some software or tool to take a note out of your research. When all these tasks pile-up, a laptop with a 4GB memory struggle. So, it is good to have at least 8GB DDR4 RAM.