One virtue of the scheme was that it made few assumptions about the aliens. (discovermagazine.com)
However, there are few limitations of using absolute valuation as you will require to make few assumptions and the results are only as good as inputs. (tradebrains.in)
In addition, the calculations can be performed with fewer assumptions and less effort than fancy valuation models like discounted cash flow analysis (DCF). (investopedia.com)