Why use "could" not "can" here? What are the differences? Here, could is tentative,that is, the writer does not want it to sound certain.
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chris1231.Why use "could" not "can" here? What are the differences?Here,could is tentative,that is, the writer does not want it to sound certain.
chris1232.And why not just say "Few things are more..." What are the differences?I think it is for the same reason the writer uses 'could be' and not 'are'