While an intention and a goal are not exactly the same things, they are very similar. Goals should be SMART (Specific, Measurable, Accountable/Actionable, Realistic, and Time-based). Or, as my friend
Phil Grebyshak likes to say, SMARTER (which adds Exciting and Recorded). Since intentions and goals are similar, it makes since that an intention should be measurable.
Basing the intention experiment ("Million Dollar Experiment") on money isn't necessary, but it makes sense. How else could you conduct a global experiment on intentions?
You can't really say, "In an easy and relaxed manner, in a healthy and positive way, in its own perfect time, for the highest good of all, I intend _success_ to come into my life and into the lives of everyone who holds this intention."
How would you measure that? And, isn't that the point of money? It gives us a way to measure value. We are using money as the metric of the energy of the Universe flowing through us.
-- Clint