2047 year born – age now in 2022?

He was not born yet in 2022. The year 2047 has not come yet! 2047 will come after 25 years.

Other examples:

If 1932 year of birth - already 90 years or still 89 years.
If 1968 year of birth - already 54 years or still 53 years.
If 1989 year of birth - already 33 years or still 32 years.
If 2005 year of birth - already 17 years or still 16 years.

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