Sepia can also help you to search PeerTube content like videos or channels on <a target="_blank" rel="noopener noreferrer" href="https://sepiasearch.org/">Sepia Search</a>!
The difference to YouTube is that it's not intended to create a huge platform centralizing videos from the whole world on a single server farm (which is horribly expensive).
The feature is called <a href="https://docs.joinpeertube.org/admin/following-instances#instances-redundancy" target="_blank">"server redundancy"</a> and caches your most popular videos to help serve additional viewers.
The PeerTube P2P system based on well established protocols like HTTP and WebRTC, and the <a target="_blank" rel="noopener noreferrer" href="https://docs.joinpeertube.org/admin/following-instances#instances-redundancy">redundancy system</a> are more easy for us to use and to maintain.