Well nice prediction that it will go down $7.5 but it could be a lucky guess unless you'll show us your data. We could be millionaires with you.
If BTC will down to $4.5K This could be the best price to buy if this will gonna happen.
So, What's next after $4.5K?
His data merely been the 38% Fibonacci level which was slightly ($100) higher. These $4500 should be more like $4800 if you draw the charts more accurate.