Yes, I know about the Keyensians. If spending cuts are bad and tax hikes are good, then why not go all out? Why only $800B for the stimulus? Why not $8 trillion

Yes, I know about the Keyensians. If spending cuts are bad and tax hikes are good, then why not go all out? Why only $800B for the stimulus? Why not $8 trillion? We'd surely get the necessary loans with a 1.5 multiplier, right? The truth is that if there was a 1.5x multiplier, we would have had a much larger stimulus and it would be made permanent.