Two questions to ask about the popular understanding about the weeks.
1. Where does it say to use a year for a day for the 69 weeks then use a day for a day for the final week?
2. Where does it say to have the 69 weeks consecutive, but then have a 2000 year plus gap before the final week?
the answer to your first question is there is no answer, I do not know what your talking about
the answer to number 2 is in the text.
1. There will be 69 weeks from the comand to restore jersualem until messiah the prince. This is confirmed
2. He will then be cut off (killed) this happened the following weekend
3. almost 40 years later, the city will be destroyed, and left desolate, and will remain desolate for a period of time which is unknown. we are still in this time period
4. The next event is the prince who is to come will confirm a covenant with many for 1 week (7 years) Many people believe this is a peace agreement, I am not sure it does nto say, but we have things like this today, a cease fire agreement, which is made between 2 parties at war for a time period. in this context. the time period would be 7 years or 1 week)
5. In the middle of the week, that same prince will place an abominable object in the wing of the temple, which will cause sacrifice and burnt offering which are happening in that day, to cease)
6. Jesus said, when you see this event, run, for then their will be a great tribulation until he returns.
7, We are told the time of this event, Israel will run and be protected for times time and half a time, for 1225 days she will be protected. and the future prince will be given 3.5 years to rule and go after the saints or the children of the woman (jerusalem)
8. Then Christ returns, and destroys the beast the false prophet and locks satan up for 1000 years.
most of it is in the text. the rest you have to go outside the text to other texts which also speak of this time to put the puzzle together