Can a galaxy at z=8.68 disprove the LCDM theory?

wolram
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We see from wikipidea that
EGSY8p7 z=8.68 13.2 is only a fraction away from the time of the BIG EVENT how close will a galaxy be to disprove the LCDM.
 
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The CMB got emitted at a redshift of 1100. Clumps of matter formed quite early afterwards, those galaxies are just hard to observe. Where is the problem? Do you have a proof that 570 million years are not sufficient to form something galaxy-like?
 

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