If you want to create a sense of informality or familiarity, 'dr' could be a good option. However, if you are trying to convey respect or a more official setting, 'doctor' is better. For instance, in a scene where a patient is first meeting a very respected physician, it would be more appropriate to say 'Doctor Brown' rather than 'dr Brown'. Also, consistency is key. Once you choose one form, it's best to stick with it throughout the story for that character.
The decision between 'sci-fi' and 'science fiction' can be influenced by the genre of your writing or the specific community you're communicating with. For example, in science fiction fan communities, 'sci-fi' is commonly used. But in serious literary analysis, 'science fiction' is more common.
It's fact. 'The Great Hack' exposed real - world issues regarding data privacy and the misuse of personal data by certain entities. It showed how data can be manipulated for political and other purposes.
In fanfiction, when the 13th Doctor meets the 11th Doctor, there could be a lot of chaos and fun. They might exchange stories about their adventures. Maybe they would team up to fight a common enemy that spans across their different timelines.
One possible plotline is that they meet in a time - locked situation. They have to work together to break the time lock. Another could be that they meet because of a shared enemy that has somehow found a way to target both of their timelines. They would then have to put aside their differences and use their individual strengths to defeat the enemy.
In fanfiction, when the 11th Doctor meets the 12th Doctor, there could be a clash of personalities at first. The 11th is so full of child - like wonder and the 12th is a bit more reserved. But then they might find common ground in their love for the TARDIS and for saving the universe. They could end up learning from each other. For example, the 11th Doctor might teach the 12th how to be more carefree sometimes, while the 12th Doctor could show the 11th how to be more strategic in dangerous situations.