I think this is an old thread trying to attract people to sell bitcoins so that they can buy bitcoins to make a good profit if the price of bitcoin will increase again back..
This is just like in trading section that they are saying that there is a big crash so people will sell their holding coins after that the price will redice and they will buy for cheap price so that they can make a profit if the price will increase again back,,
The interest rate is very low at the moment, for example 0.25%. If the increase of interest to 0.5%, that is 100% price rise. That will crash the economy.
The Federal Funds Rate (what is usually meant by interest rate of the FED) has already been at 0.5% since December 16, 2015. And you guess, it rose to that figure exactly from 0.25% (which had been there for seven years). As you can see, it didn't crash the economy, even despite your claimed 100% growth...
Below are the historical FED interest rates for the inquiring minds
december 16 2015 0.500 %
december 16 2008 0.250 %
october 29 2008 1.000 %
october 08 2008 1.500 %
april 30 2008 2.000 %
march 18 2008 2.250 %
january 30 2008 3.000 %
january 22 2008 3.500 %
december 11 2007 4.250 %
october 31 2007 4.500 %
Just in case, a rise from 0 to any positive value would be infinite in relative terms