Dropbox Infinite is what OneDrive placeholders should've been

Dropbox recently announced a revolutionary new concept it says re-imagines how people will manage their files in the cloud. Called Dropbox Infinite, this new service for PC and Mac differentiates between whether a file is stored locally on your PC or only available online in Dropbox. All your files still appear in File Explorer, but if it’s not saved to your PC the file takes up zero space.
If that sounds familiar, you were (or are) a Windows 8.1 user.
The truth is there’s nothing a