Why exd4 is a mistake?

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tolisapostolou

Alramech
tolisapostolou wrote:

Why exd4 is a mistake?

r1bqk2r/ppp2ppp/2nb1n2/3pp3/3P4/2P2N2/PPQBPPPP/RN2KB1R b KQkq - 0 1

It is a mistake because a much more attractive option exists: e4!  This accomplishes a lot in one move.  It gains space, comes with tempo on the White knight on f3, and maintains center control.