研究中提到的推动力包括预期寿命的增加，取消养老金，经济不确定性和重新思考后面生活的前进目标和社交。
Driving forces cited in the study include increasing life expectancy, elimination of pensions, economic uncertainy and re-visioning of later life towards purpose and social engagement.
美联储从通胀预期的高度不确定性和下行风险抬头两方面进行了引证。
The Fed cited both high uncertainty about the inflation outlook and downside risks to growth.
然而，理性比逻辑的范围广得多，因为它包含了“合理但不确定”的结论，这样的结论基于可能性、预期、个人经验和类似的原因。
However, rationality is a much broader term than logic, as it includes "uncertain but sensible" arguments based on probability, expectation, personal experience and the like.
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