Goal line technology is a very important tool in modern football , it has helped in many games in the past undoubtfully .
VAR is a new tool , it was a great add in the last Mundial , it has future for real .
But in some cases even VAR can't help (ex foul not very far but not either very close to the area of the goalkeeper thatit might be a no-foul and VAR willnot be used ) , moreover referees can't use it innumerable times , spectaculars will get bored with the time-delays and I don't think the refs tend to add all these to the extra time , so we lose playtime .
So referees need to be extra careful besides having all these technologies

Maybe , also , if the VAR personel (referees all of them) was announcing to referee that he did a mistake in a decision and not making him to go there and then return , see for himself , I think it's useless , less time would cost in the gameplay , cause they are the ones in the first place they are telling him that this decision might be wrong , and ofcourse spectaculars in the stadium and viewers from home will keep confirming the righetous decision by watching it (we all did watched the moments that VAR judged and saw it judged correctly)

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