Why don't I make such metal that it won't be possible to steal and scrap it?

Creating a type of metal that is impossible to steal or scrap is an intriguing idea but poses several challenges. Here are some factors to consider:

**Identification and Marking**: While it's difficult to create a metal that can't be stolen, you can develop a metal that is easily identifiable or traceable. This could involve embedding unique markers or characteristics during the manufacturing process that are difficult to replicate or remove.

**Physical Properties**: All metals have physical properties that define their usability and value. If you alter a metal's properties to make it less desirable or useful for scrapping, it might not serve the intended purpose for its primary application. 

**Legal and Criminal Aspects**: Increasing the difficulty of stealing metal often involves legal measures rather than just the physical properties of the metal itself. Implementing stricter laws and regulations concerning metal recycling and theft can be more effective than altering the metal itself.

**Market Forces**: Ultimately, the value of metal is determined by market demand. If a metal is particularly valuable, it's likely to be targeted for theft. Creating a metal that has less desirability on the scrap market could discourage theft, but it wouldn't eliminate it.

**Innovative Materials**: Researchers are exploring advanced materials such as smart metals or alloys with built-in security features. For example, some materials can change color or display a message when tampered with.

**Durability and Longevity**: Making a metal resistant to degradation and corrosion can reduce the incentive for theft and scrapping, as stolen metal could become less valuable or unusable over time.

In summary, while it may be theoretically possible to develop a metal or material with features that make it less desirable for theft and scrapping, practical considerations related to market value, physical properties, and legal infrastructure play significant roles in addressing the issue.