If you think deflation is good for liquidity, you are missing econ 101 knowledge. You only have to look to Japan in the 90's for proof or the great depression!

When deflation rises, businesses start feeling uncertain about the amount of money they can pull in regularly and start laying off workers. Individuals start to save more and spend less. Instead of hiring workers to do their lawns or buying meals, they will try to do everything themselves. In this manner, the "monetary" value of "wealth" from lawn mowers and processed food producers approaches 0.

This is another fundamental difference between the wealth pool and the currency pool.