Not sure since I haven't played the VNs, but I think SERN isn't really working on time machines on this timeline. The 1% barrier is not only about Kurisu or Mayurii. In the Alpha timeline (0.X), the SERN database has the first D-Mail (Kurisu being stabbed), which lead them to make experiments, which leads them to take the Lab Members and kill Mayurii, which lead to Kurisu mother of time machine and Okabe terrorist, both dead by 2036, and Suzuha with imperfect time machine cause Daru also went RIP, which lead Suzuha to go back to 2010, further changing the timeline, before going back to 1975, changing even more the timeline. In conclusion, a change which leads to a new present that creates a future in which someone changes the past, leading to another present and another future in which some other thing may change the past. This is the main difference between the Alpha and Beta timelines. Is it not only that Kurisu is dead in Beta while Mayurii is still alive. It changes the time travel shenanigans that happened before the "Present". In Beta, the time machine isn't defective, Suzuha knows Daru and the others Lab Members, Suzuha has not lived in the past (Taking care of "Ferdinand Braun"), and other many changes that stack one on top of the other, and that's why there is such a big jump between the Alpha timeline and the Beta timeline. Changing something that happened on the summer of 2010 not only changes the future from then on, it also changes the past before that point.
!["This Timeline is FRICKED!!" - A Weeb & Normie React - Steins;Gate 0 [S1E7-8] (Highlights)](http://i.ytimg.com/vi/euCPd-oHRnM/mqdefault.jpg)
!["This Timeline is FRICKED!!" - A Weeb & Normie React - Steins;Gate 0 [S1E7-8] (Highlights)](/img/tr.png)
!["Character DEVELOPMENT!!" - A Weeb & Normie React - Jobless Reincarnation [S1E7] (Highlights)](http://i.ytimg.com/vi/ZLmELQVkRuE/mqdefault.jpg)
!["What happened to her?..." - A Weeb & Normie React - Steins;Gate 0 [S1E1-2] (Highlights)](/img/1.gif)
Not sure since I haven't played the VNs, but I think SERN isn't really working on time machines on this timeline. The 1% barrier is not only about Kurisu or Mayurii. In the Alpha timeline (0.X), the SERN database has the first D-Mail (Kurisu being stabbed), which lead them to make experiments, which leads them to take the Lab Members and kill Mayurii, which lead to Kurisu mother of time machine and Okabe terrorist, both dead by 2036, and Suzuha with imperfect time machine cause Daru also went RIP, which lead Suzuha to go back to 2010, further changing the timeline, before going back to 1975, changing even more the timeline. In conclusion, a change which leads to a new present that creates a future in which someone changes the past, leading to another present and another future in which some other thing may change the past. This is the main difference between the Alpha and Beta timelines. Is it not only that Kurisu is dead in Beta while Mayurii is still alive. It changes the time travel shenanigans that happened before the "Present". In Beta, the time machine isn't defective, Suzuha knows Daru and the others Lab Members, Suzuha has not lived in the past (Taking care of "Ferdinand Braun"), and other many changes that stack one on top of the other, and that's why there is such a big jump between the Alpha timeline and the Beta timeline. Changing something that happened on the summer of 2010 not only changes the future from then on, it also changes the past before that point.
omg i didn't realize its a hour long