That's why Facebook is investing in VR. Not because they're optimistic about it, or because they want to own the space, but because it's the closest horizon that has the potential to fundamentally change interaction.
If it does, they have a foot in the door and can flood resources into it. If it doesn't, small price to pay for hedging an existential threat.
This doesn't seem accurate, do you have evidence to back up this claim? Instagram had 30 million users and no revenue upon acquisition. Facebook had over a billion, and billions in revenues.
One way to counter a scale-free network is to create adjacent scale-free networks that replaces its competition one part at a time. This is what, I believe, WhatsApp (with messaging) and Instagram (with images) were on the verge of doing.
https://en.wikipedia.org/wiki/Scale-free_network#Immunizatio...
I can argue that my friends now use all use email, eclipsing facebook, whatsapp and instagram, better buy those stocks in SMTP. ;)
Facebook's network effect was overwhelmed twice, once by instagram and again by whatsapp... shame both those ended up squarely in Facebook's court. Remains to be seen how much dent can TikTok / Twitch / YouTube / Snap / Azar / Telegram can make on to that once-in-a-generation trifecta.