Acting

As Mary and Shi Tian continued to discuss the potential of the drone, their excitement was tempered by the realization that mass production might not be feasible due to the scarcity of the necessary materials. 

The drone's capabilities were impressive, but building more of them would require resources they simply didn't have at their disposal.

Mary sighed softly, her eyes reflecting a mix of enthusiasm and frustration. 

"We have such an amazing drone, but there's no way of producing more of them. This is why humanity is barely surviving." She ranted and complained. 

"Actually, that might not be the case." 

To their surprise, Vanessa suddenly intervened in the conversation and gave her input.

Mary subsequently turned on the auto-driving function temporarily as a result. 

She then turned around and stared at Vanessa, "What do you mean by that's not the case?" 

Vanessa shrugged her shoulders but smiled mysteriously.