@Dr.Shubhi Yadav urf Shubs yup u are correct 100% correct but the main thing is that someone has to speak up in almost ever educational video every comment is "nice", "very good sir", "awesome" etc...... but none of them are coming to the point of what is the quality of education being provided in this video i k that the person is experienced but he is just letting the flow go with nothing good in it but then also i k i was wrong so i apologize for it.. nd i will not repeat it again well thanks for it............