What was keynes solution on the depression?

John Maynard Keynes proposed that during economic downturns, governments should increase public spending and investment to stimulate demand and pull the economy out of depression. He argued for counter-cyclical fiscal policies, where the government would run deficits to finance this spending, thereby creating jobs and boosting consumer confidence. Keynes believed that by increasing aggregate demand, economies could recover more quickly from recessions. His ideas laid the foundation for modern macroeconomic policy and the welfare state.