Is FED's credibility eroding?

Based on what, you are asking me. Two things:

  1. Common sense.
  2. Japan’s example. It’s working age population peaked in 1995. Overall population peaked 5 years back.

Check out the GDP growth rates from 1990s

Now check debt to GDP ratio:

60% in the 90s and 230% today. Please click on ‘max’ on both the charts.

Japan had strong exports all the while since the world was growing in population unlike Japan: Japan Exports

Even then the domestic economy is in such a mess.