Less than two days after launch, Mark Zuckerberg says Threads signups reached 70M, which is "way beyond our expectations" (Lauren Feiner/CNBC)

Lauren Feiner / CNBC:

Less than two days after launch, Mark Zuckerberg says Threads signups reached 70M, which is “way beyond our expectations”  —  – Meta’s new Twitter competitor Threads has exploded in growth in its first full day since its public debut Wednesday night, fueled by Instagram’s already massive userbase.