As a first time applicant, is there a declination notification or is lack of response the indicator of being passed over? Also, it seems there is an advantage in submitting late as you may avoid applicant fatigue. True?

We send emails to everyone. If you didn't get one, email us at apps at ycombinator dot com

What happens if a rejected company from this batch submits a late application. Does this paradox cause the universe to implode?

Haha - honestly though , is this acceptable?

From apply.ycombinator.com:

"You are listed as a founder on another application. Please do not create a new application unless you're applying with a different startup."

Was worth a look... :-)

My guess would be - don't ask but do. Asking for permission probably makes it already a "no".

No problem, thanks for the quick response!