Reply #125: Remember Occam's Razor. Some estimates are better than none,

[AirAmFan]

especially when time is short.

It sounds as if you think I used the razor to give the data too close a shave. But sometimes you need to make sweeping assumptions to get the data to tell you anything in time to make a difference in the real world.

Models always can be extended. But Occam's Razor always makes you justify a more complex model with demostrated shortcomings of a simpler one.