Earlier quoted context omitted.
Inflation is an increase in money supply over an increase in the value of things to buy with money (or we could say the size of the economy). Money supply could increase, but if it is balanced with a growth in good supply, inflation doesn’t occur. This is why it can’t be computed directly.
That is not true, inflation is exactly when the money supply increases. It doesn’t matter what happens to “good supply”. In fact the supply of goods increases in response to a price increase. That’s why most people think a low level of inflation is healthy.
Cities that gain many high earning jobs will see housing inflation even though employers do not create money. This is independent of national level monetary policy.