In the decade and a half since the last crash we used QE to more than double the amount of money in the world. Almost all of that money went to people over the age of 45. That's the problem. We replaced the lost wealth of older people by making up money and giving it to them, replacing the money they had in the banks, replacing the money their pension funds held in stocks and shares and re-inflating the value of their homes. That halved the value of labour relative to capital. That's why young people can't afford houses and why house prices have grown so much relative to earnings.