For those too lazy to click, the original Wikipedia article reads:
The Mariana Trench [...] is currently estimated to be up to 10,971 m (35,994 ft) deep. [...] The trench is about 2,550 kilometres (1,580 mi) long but has a mean width of only 69 kilometres (43 mi). It reaches a maximum-known depth of about 10.91 kilometres (6.78 mi) at the Challenger Deep[.]
However, the inlined snippet in the chat reads:
The Mariana Trench [...] is currently estimated to be up to deep. [...] The trench is about long but has a mean width of only . It reaches a maximum-known depth of about at the Challenger Deep[.]