Warning 8.5.4.3. An $\infty $-category which admits finite limits (or colimits) need not be idempotent complete. See Example 
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$\Newextarrow{\xhookrightarrow}{10,10}{0x21AA}$
Warning 8.5.4.3. An $\infty $-category which admits finite limits (or colimits) need not be idempotent complete. See Example .