Originally Posted by

**longview**
I have to disagree, some, there are levels of understanding Science.

Like the approximations in a mathematics formula.

It 's not that the numbers change based on more understanding, they just get more accurate.

I like to use road trip analogies, as most people have some experience in planning and driving.

Someone plans a trip to another city that is 200 miles away.

They want some idea of how long the trip will take, and how much gas they will use.

The basic variables, are, route taken, road conditions, number of stops, ect.

A non traffic interstate, with no stops cold do the trip in 3 hours, and 10 gallons of gas

The older hwy route, going through towns, say 6 hours, and 12 gallons of gas.

This would be the first approximation.

An Engineer asked the same question, may also want to know the weather conditions,

and speed limits in the states passed.

With the added information, the results could be refined to within a 15 min window,

and quart of gasoline,based on the input info.

This would be the second approximation.

The Scientist, might get the department of transportation data,

and average the time 100,000 drivers took to make the trip on the primary route.

They could tell the average time, likely down to the minute,

and the average amount of gasoline likely used on the trip.

This would be the third approximation.

All three approximations still fall into the 3 to 6 hours, and 10 to 12 gallons of gasoline,

the layman driver calculated.

The added information, improved the accuracy, but did not change the time fuel window.