Facebook 4Q results soar, in prelude to an uncertain 2021

Facebook capped a tumultuous 2020 with soaring earnings in the final quarter, its user base boosted by people staying home and its revenue buoyed by a shift to digital advertising amid the pandemic.

But the company predicted uncertainty for 2021 and said its revenue in the latter half of the year could face significant pressure. Because revenue grew so quickly in the second half, the social network could have trouble keeping up that pace.