Comment by fransje26

> However, for sure this crash should have never happened but it only happened because they were testing the limits of both the train and the track.

No. It happened because they were under-prepared and disorganized, and thereby didn't respect the speed restrictions for the segment of track they were on.

They crashed entering a 175 km/h segment at 265 km/h, which is well above the 10% overspeed they were theoretically testing that day.