Can a software engineer recover a bitcoin lost at a landfill site?

Could you elaborate on the feasibility of a software engineer retrieving a lost Bitcoin from a landfill site? The scenario seems highly improbable given the nature of cryptocurrencies and their digital existence. However, I'm curious if there's any theoretical possibility that a skilled engineer might be able to trace and recover a Bitcoin that has been inadvertently discarded. Wouldn't the Bitcoin itself just be a series of encrypted codes that could potentially be recovered from discarded hardware? What challenges would such a task pose, and is it really a viable option for someone who has lost access to their digital wallet?