"So you're saying there's a chance?"... What you say is not incorrect, proving a negative here beyond all other possibility is hard. But I feel like for the lay

"So you're saying there's a chance?"... What you say is not incorrect, proving a negative here beyond all other possibility is hard. But I feel like for the lay person like me (us?), this matter should be considered resolved now. There's no point stretching hope and spending energy to follow it further.