No, that's incorrect. Steem currently operates at a 9.5% inflation rate, meaning, 9.5% more Steem tokens will be created this year based off the current Steem tokens in circulation. For example, let's say there is $100 US dollars currently in circulation around the world. If we produced more US dollars at a 9.5% inflation rate this year, we would create an additional $9.50 of US dollars(9.5% of $100), now bringing the total to $109.50 US dollars. Steem tokens will continue to be created like this, decreasing the inflation rate by 0.5% yearly, so in 19 years, there will be no more Steem Tokens to be made.

You actually earn 2% interest by holding your Steem in Steem Power. Just another way you can accumulate Steem.