AdvertisementSKIP ADVERTISEMENTYou have a preview view of this article while we are checking your access. When we have confirmed access, the full article content will load.Meta Gave Away Its A.I. Crown Jewels. DeepSeek Vindicated Its Strategy.The Silicon Valley giant was criticized for giving away its core A.I. technology two years ago for anyone to use. Now that bet is having an impact.Meta executives think a decision they made two years ago is leveling the A.I. playing field.Credit...Jason Hen...