Could you please make a specific section that justifies your claim?
I skimmed https://en.wikipedia.org/wiki/Capital_asset_pricing_model but I don't see anything there that validates your claim. I may have overlooked something, if so please let me know.
I'm skeptical of your claim. Based on some other reading [1]:
> To manage your portfolio, you need a way to compare your different investments and decide which are worth keeping. The dividend discount model and the capital asset pricing model are two methods for appraising the value of your investments. DDM is based on the value of the dividends a share of stock brings in, whereas CAPM evaluates risks and returns compared to the market average.
Your comment comes across as passive aggressive, unfortunately. I hope that wasn't your intent.