Why storing files on the local drive is inefficient

Let's focus on the three most important reasons:

• No backup: Everyone knows that the local hard disk can fail. But we still do not end up taking regular backups. One hard disk malfunction can wipe off years of your work. Too much risk, isn't it?
• Stuck to your PC (or device): You save a file on a laptop/PC/Mac and then switch it off. Now, you are in another place and you need the file. What can you do? Nothing. You cannot access your own file when you need it. Unfair, isn't it?
• Copies: This is the biggest enemy. Initially, it is just one file. But invariably, we need inputs from others. Now what? You send the file either as an email attachment or put it in a group chat. People edit the file and send it back. Congratulations! Now you have five copies! We waste a lot of time copy-pasting it into the sixth copy. Is the job done? Not yet. Another round, then one more… after some 27 copies, the final...