Conversations are occurring at this very moment to decide on the future of the blockchain and how it's data set is to be managed.
It currently takes a very long time for your desktop wallet to sync with the network and this is to only worsen over time due to the exponential growth of the blockchain.
Many ideas for scaling Bitcoin have been brought to the table and the development team are currently trying to decide on what is the best method for managing this.
Welcome to the world of Bitcoin by the way - it's good that you're curious about it's inner workings.
You may become one of the people that changes Bitcoin one day.... just think of that