Sources: Jeff Dean is raising funds again for Discovery Loop, seeking a valuation of ~$50B; Discovery Loop was raising $1B at a ~$10B valuation a few weeks ago (Ben Bergman/Business Insider)

Ben Bergman / Business Insider: Sources: Jeff Dean is raising funds again for Discovery Loop, seeking a valuation of ~$50B; Discovery Loop was raising $1B at a ~$10B valuation a few weeks ago — Jeff Dean, who resigned as chief scientist from Google last month, is raising again for his new AI startup, Discovery Loop …