"I know, there is a huge market of software concerning brain training, IQ-training, and so on... The ... fact that we reliably showed transfer effects after training, and moreover, that we showed transfer to such an important function as fluid intelligence is a very new and exciting finding in our field."

"Increasing intelligence is possible after all ...with more training leading to greater gains ...across the spectrum of abilities. ...Almost 40 years ago, Jensen claimed that, when all is said and done, there is not much one can do to raise people's IQs. Jaeggi and her colleagues have made an important contribution... by showing that intelligence is trainable to a significant and meaningful degree."