Ok. Here is the thing about the bitcoin hoarding arguments.
If people are sitting on bitcoins instead of spending them, then the amount in circulation will fall, and prices (of everything) will fall too. These low prices will provide an incentive for "hoarders" to spend their coins while prices are low. Which means that the amount in circulation will go up, which will cause prices (of everything) to go up. Which will cause people to hold onto their coins instead of spending them. Which will cause prices (of everything) to fall. These low prices will provide an incentive for "hoarders" to spend their coins while prices are low. Which means that the amount in circulation will go up, which will cause prices (of everything) to go up. Which will cause people to hold onto their coins instead of spending them. Which will cause prices (of everything) to fall. These low prices will provide an incentive for "hoarders" to spend...
Get it?
The one thing that I wish that everyone understood when they got out of high school is the concept of the dynamic equilibrium.
Trivial case: 2 people. The "hoarder" and the "other".
The "hoarder" gets all the bitcoins. The prices fall to zero. The "hoarder" can get anything by spending nothing. The "other" then becomes a slave.
Am I wrong?