The comparison is from south and west I think, BTC raises when there are lot of people in a GOOD MOOD (good news sells).
On the other hand, GOLD price most comes up when there are lot of BAD EVENTS like war.
It is because the gold is used as main reserve and global money.
But I think it is still possible for BTC to surpass GOLD, but not today or years from now, but it could be in more than a decade from now.