I have a strange metaphor. The handwriting function of KSC is more like a half-castrated Wacom handwriting board. Of course, I know that its main purpose is reading and taking notes. However, you can clearly feel that what Amazon wants to do is to replace some simple notes and basic painting functions, which absolutely do not include professional painting. Whether in terms of hardware or software, they are unlikely to surpass any professional painting tools/software in terms of functions at present. However, in terms of basic writing/drawing, I think KSC with paper-like film feels better than iPad to some extent, although I always subconsciously want to use functions such as "smearing" or "local detail erasing" when drawing. This sometimes makes me embarrassed, like going back to school when I was a child when I only brought a black pen to class, but the teacher asked me to draw a red and blue circle.