Michael returned to Silicon Valley where, following a brief run at social media analytics company Klout, he joined Uber in 2013 as chief business officer and a close lieutenant to CEO Travis Kalanick. Over the next four years, he helped orchestrate one of the most aggressive expansions in corporate history, in which Uber raised nearly $15 billion and saw its valuation soar to roughly $70 billion.
From there, Michael took a less conventional path than many Silicon Valley executives by moving into government, serving from 2009 to 2011 as a White House fellow under President Barack Obama, serving as special assistant to then–Defense Secretary Robert Gates at the DOD where he managed projects in Afghanistan, Iraq, and Pakistan and oversaw efforts aimed at reducing bureaucracy to provide resources to soldiers.
。业内人士推荐夫子作为进阶阅读
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研究顯示，自我控制是影響老年人手機成癮的重要因素。對於老年人群體而言，「因生理機能、認知能力日趨衰退，所以無論是自我資源還是心理狀態都不及年輕人群，因而自我控制能力可能也會衰退，進而手機成癮等行為也可能增加」。這意味着，當短視頻不斷推送新內容時，老年人在「停下來」這件事上不僅是意願問題，也與生理機能和認知能力的衰退導致的自我控制能力下降有關。