Monoliths give you the option to "donate a whole tablet". If you have an unrepaired tablet it says "you may only donate a repaired tablet".
Monolith at -1884, 6308.
Speculation, nothing more:
The monolith message about "whole" or "repaired" tablets draws attention to the fact that all explorers - who entered VoK via the 4th altar - are carrying "broken" tablets. It may be that the process of powering up the meteors with broken tablets is the means of repairing the tablet(s). If this is so, the monolith(s) and not the meteors may be the key to the mystery of VoK.
There are very many meteors: at the moment our quest lacks a sufficient number of Egyptians with tablets, it does not lack meteors.
Let us suppose that the critical mass of Egyptians (more than the 30 mentioned in Gentry's message) enter VoK with tablets, and that something more substantial than "random" experimentation with the meteors is undertaken. Suppose that the requisite number (5? 7?) of tablets attuned to a meteor allows the power of that meteor to repair a tablet or tablets.
Might a repaired tablet or tablets, donated to a monolith, evoke from that stone a message concerning our future?
We await the engagement of a sufficient number of our Egyptian brothers and sisters with this quest to find out the answer to this question.
Perhaps the victims of the terrible plague that ravages our land await this answer with particular interest?