If stocks double and everything costs twice us much, you're 2X better off having invested than held cash. If stocks double and everything costs the same, you're

If stocks double and everything costs twice us much, you're 2X better off having invested than held cash. If stocks double and everything costs the same, you're 2X better off having invested than held cash. If stocks double and everything costs half as much, you're 2X better off having invested than held cash. Note I'm not claiming stocks will double or triple, but if that's the starting assumption then there's no need to ask what inflation or deflation will do.