1st QUESTION: Why has email become established as a key structural tool in a virtual and asynchronous environment?

Because it allows the creation of an organized operational rhythm while respecting time differences
Because it is the only channel that allows recording conversations
Because it facilitates the use of idioms and humor to bring the team together
Because it's faster than instant messaging

2nd QUESTION: What should virtual teams avoid when communicating with people from diverse cultures?

In all communications, to make the atmosphere more pleasant
Only in video calls, never in writing
Only if one has a very strong personal relationship and a deep understanding of the other's cultural context
Only when the team shares the same nationality