hubic syncs to my pc everything uploaded to it. assuming I have 10tb of files hosted on it, does it mean I need 10tb of hard disk space to keep them synced? kin

hubic syncs to my pc everything uploaded to it. assuming I have 10tb of files hosted on it, does it mean I need 10tb of hard disk space to keep them synced? kinda defeats the purpose of having so much storage online..