Scott Fitzgerald is famously quoted as saying,
“The test of a first-rate intelligence is the ability to hold two opposing ideas in mind at the same time and still retain the ability to function.”
Plenty of people will come to you saying that there’s no other way. The only option to succeed is to follow through on their idea.
Encourage them to go to the edge and create viable alternatives.
It’s a coaching challenge for you to inspire confidence and stimulate a variety of ideas. It’s a challenge of intelligence for your colleague to go beyond their initial thinking, hold two opposing ideas and retain the ability to function.