  The so-called `impossibly early galaxy' problem, first identified via the
Hubble Space Telescope's observation of galaxies at redshifts z > 10, appears
to have been exacerbated by the more recent James Webb Space Telescope (JWST)
discovery of galaxy candidates at even higher redshifts (z ~ 17) which,
however, are yet to be confirmed spectroscopically. These candidates would have
emerged only ~ 230 million years after the big bang in the context of LCDM,
requiring a more rapid star formation in the earliest galaxies than appears to
be permitted by simulations adopting the concordance model parameters. This
time-compression problem would therefore be inconsistent with the age-redshift
relation predicted by LCDM. Instead, the sequence of star formation and galaxy
assembly would confirm the timeline predicted by the R_h=ct universe, a
theoretically advanced version of LCDM that incorporates the `zero active mass'
condition from general relativity. This model has accounted for many
cosmological data better than LCDM, and eliminates all of its inconsistencies,
including the horizon and initial entropy problems. The latest JWST discoveries
at z > 14, if confirmed, would add further support to the idea that the R_h=ct
universe is favored by the observations over the current standard model.
