Well, you continue to amaze us: you've increased the amount of video uploaded to YouTube to 35 hours per minute. That breaks out to 2,100 hours uploaded every 60 minutes, or 50,400 hours uploaded to YouTube every day. If we were to measure that in movie terms (assuming the average Hollywood film is around 120 minutes long), 35 hours a minute is the equivalent of over 176,000 full-length Hollywood releases every week.
Provide an estimate of how much storage YouTube requires to host this video on a weekly basis. You'll need to make assumptions in your reasoning, any reasonable assumptions are fine, simply document them and justify them.
You should also estimate the amount of storage YouTube will need in 2015. Again, state and justify your assumptions.