1. CRAY's supercomputer "which" is one the fastest...
2. Moore's prediction that is contradicting is a sense...
But AFAIK or I could have misunderstood, "which" specifically for people and "that", for objects and animals or anything other than people. Please enlighten.
Top answer
Hi Korsav, 'Which' is used for objects, but not people. 'That' can be used for either people or objects
— Abbie1948
Hi Korsav, 'Which' is used for objects, but not people.
'That' can be used for either people or objects
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There are a very small number of instances where English uses 'which' for people but these are really limited and they tend to be specific not to an individual person but rather to a group.
'which' is invariably used once the noun has been adequately described, so in #1, 'that' would sound strange.
Generally:
who/that for people - 'who' when it's clear who is meant.