Investor Gary Black, managing director of The Future Fund LLC, has shared that Tesla Inc. (NASDAQ:TSLA) investors would want to see the company's earnings estimate turn positive.Investors Would Demand Positive Earnings RevisionsThe investor took to the social media platform X on Wednesday to share his thoughts, saying that he acknowledged that Tesla stock does not follow regular growth norms and "earnings revisions and valuation matter less."However, the investor said that "at some point" Tesla's shareholde ...