Hi guys I am a c++ dev on a journey to learn some solidity. I were pondering how much max data is recommended to be stored in a contract. I am currently thinking about creating a small system where users can buy access in a queue and they can then later trade the access in the queue. The way I am thinking to implement this is to make a contract where a user can send some eth in exchange to get a place in the queue. I were thinking to just create a list with addresses. but how big can this list grow, lets day it ends up with 1.000.000 indices would that be feasable ?