I saw this post and what do you think? Is it possible for him to become that rich in such a short time?

look at the post here https://boletimbitcoin.com/2022/05/19/com-o-bitcoin-el-salvador-sera-o-pais-mais-rico-do-mundo-em-8-anos/

this inflation is also linked to people who mess with bitcoin  in the short term.
https://holdingtimes.com.br/2021/08/25/maos-de-diamante-fornecimento-de-bitcoin-de-curto-prazo-atinge-minimos-historicos/