$\phi^4$ inflation is not excluded
  We present counter examples to the claim that the $\lambda \phi^4$ inflaton
potential is excluded by recent cosmological data. Finding counter examples
requires that the actually observed primordial fluctuations are generated at
the onset of the slow-roll regime of inflation. This set up for the initial
conditions is therefore different from the usual scenario of chaotic inflation
where inflation starts long before the observed fluctuations are created. The
primordial power spectrum of "just enough" chaotic inflation violates
scale-invariance in a way consistent with observations.
