Also interesting story abt margarine - it used to be white, and consumers preferred butter which was yellow. So they coloured it yellow to give it a butter look and feel, repackaged into gold films to give it an expensive look, and brought down the price - and the sales of margarine overtook butter in the 90s. Recently the rebranding efforts has revolved around ‘vegan butter’ or vegetable oil. These are all just seed oils

There’s a branch in marketing subjects in mba called neuromarketing where it teaches about consumer psychology - I guess you can use it for good or bad but the way the class was taught felt a bit disturbing ie 101 ways to con customers