Mashups are not just ripoffs of other peoples work it is really a well respected way of coming up with new ideas. Who is trying to make us think that Mashups are not valid works of creativity? Why are these people/groups/companies attempting to discredit something which has been a long standing method of coming up with new ideas?
4. Make novel combinations. Combine, and recombine, ideas, images, and thoughts into different combinations no matter how incongruent or unusual.
The laws of heredity on which the modern science of genetics is based came from the Austrian monk Grego Mendel, who combined mathematics and biology to create a new science.