Sure you can do that. The question is just which has more potential to rise. But thats hard to tell, especially when looking at how things are going right now, with geopolitics and Trump and all.
What I'm still keeping in mind is a new technology that needs silver - lots of it. Like a new type of batteries for cars. There was rumors of that recently. If that comes true, silver could see 100 or 200 or even more.
But to know that now needs a crystal ball. There are lots of reasons that speak for gold, too. War, inflation, economical troubles - and not at least that its easier to hide and transport than silver.