Issues to be handled

1. Assume there are 4 sages already and each has updated each other of current sages, let them be indexed s0, s1, s2 and s3. If s4 sends request to s0 and s5 sends request to s3 at the same time? Both s0 and s3 send back acknowledgements, update their states, and broadcast this info to other sages. See what happened here? The number of sages may cross 5 which is the limit.