You appear to have misread my comments. I’m not saying that the entire industry follows Apple but the opposite: the comment I was replying to was claiming that

You appear to have misread my comments. I’m not saying that the entire industry follows Apple but the opposite: the comment I was replying to was claiming that the trend towards thinner laptops was all marketing, and I am arguing that this can’t be the reason because everyone in the industry has been on the same trend following consumer preferences.