One of the biggest challenges that we will encounter in Bitcoin is the Scalability problem which means there is only limited amount of information that can be contained or its capacity. I'm sure that there will be more people who will going to join the campaign which will result to a possible delay during processing or trading. So how can we provide a solution on this or how to ensure that all the trading done were saved once delayed before bitcoin achieves mainstream adoption?
You dont know what youre saying. Being limited in amount is not a problem in Bitcoin. The price for every bitcoin is being determined by the rate of demand. So even if there isnt much, when the demand increases the price will also increase and as demand continues to go up, so will the price continue also. Even if the price turns out to be stable you will still see people complaining. No way to please them.