[I can investigate a remote problem] So I was very compelled by doing the second experiments, and I wanted to take it even further -- maybe addressing an even harder problem, and it's also closer to my heart.
[Posso esaminare  un problema distante] Ero costretto a fare anche  un secondo esperimento, volevo andare oltre, magari affrontando un problema più difficile e più vicino al mio cuore.