Push the envelope
Definition 1 of 1
Pro Tip 1/3Risk Implications
Understand that 'pushing the envelope' suggests taking risks that may lead to breakthroughs. 
To revolutionize art, she pushed the envelope with her controversial exhibits.
Pro Tip 2/3Not Always Positive
'Pushing the envelope' could fail or be criticized, it's not guaranteed to be praised. 
They pushed the envelope too far, resulting in a product that customers didn't want.
Pro Tip 3/3Innovation Context
The phrase often relates to creativity and technological advancements. 
The new smartphone pushed the envelope with its groundbreaking features.