I'm not sure I understand? If you want to host the data on Dropbox, Dropbox becomes a part of the network and is hosted by the community and Dropbox or whateve

I'm not sure I understand? If you want to host the data on Dropbox, Dropbox becomes a part of the network and is hosted by the community and Dropbox or whatever service you like. The problem is that it is very prohibitive to use services like AWS. For instance, downloading all of Arxiv.org from AWS is around $600 last time I checked. Not every student trying to run an experiment is going to have $600 laying around to run the experiment. But with torrent/ipfs it would be free to download. It only adds. I don't understand how it subtracts.