I pondered about this so many times. One think about Islam is almost everything is/will be explainable and possible at some point , no magic or sht involved. The prophet talked about globalisation 1400 years ago, the sahabas believed it even though it probably didn't make sense then but today it is totally something that has been made possible. Same thing with how the Arabic beduins will be competing with tall buildings (UAE,Qatar etc) , Something people couldn't fathom then but today it is literally happening before our eyes. There are literally many examples.
I don't think Dajjal will come out soon, it might take atleast 300 years or even a millennium or more who knows. Observing some of the events around his coming;
1) There would an Islamic caliphate.. (idk but the gaalo overpower us now in almost every aspect)
2) Technological advancement that would enable him to set foot in every single place on this earth (except Makkah &Medina) within 40 days
3) Animals talking (technology again I guess)
3) "We asked: How long will he remain on the earth? He (saw) replied: Forty days, one like a year, one like a month, one like a week, and rest of his days like yours. We asked: Messenger of Allah, will one day's prayer suffice us in this day which will be like a year? He (saw) replied: No, you must make an estimate of its extent. Idk but these aren't possible right now in our world, but something might happen in the future that would totally make sense of this (Maybe climate change/ or something to do with change in 'time' )
Anyways this was my take. Who knows though.