Can Interest Rates Go Lower?

There's a lot of talk about lower oil prices but, other than being happy to fill my tank, should I worry about flow-on effect to the largest obligation in my life...my mortgage? It seems views are mixed around what the Bank of Canada may do but the prevailing view is that the Canadian economy is founded on strong fundamentals https://www.theglobeandmail.com/globe-investor/personal-finance/mortgages/canadians-keep-loading-up-on-debt-despite-worries-from-oil-price-drop/article22433974/