Hi, I have some confusion about the cosmological constant (CC). From what I have read it is to do with the energy density throughout the entire universe which is thought to drive the expansion of the universe. If the CC were any smaller then matter would not have been able to form and since the number is so small it means that life is extremely finely tuned. I have watched a few lectures online from decent professors (like Susskind) but different people quote the CC in different units. Susskind quotes it in dimensionless units which give a number of 10 to the power of -122. Other professors quote it as 10 to the power of -29 in units of grams per centimeter cubed. Both argue how fined tuned life because of how small the number is but how fined tuned is it? These two numbers differ by 93 orders of magnitude. Can you really just change the units from grams/cm^3 to dimensionless units and argue that life is fined tuned to an order of -122? That's seems ridiculous to me.