is precipitation technically the same as crystallization?

No. The word "technically" bothers me. I think non-technically it may be similar but technically it isn't close.

Precipitation is a reaction producing a solid; crystallization is not a reaction but a material coming out of solution where it has been dissolved.

Why not technically?

Because technically means we are dotting all of the "i"s and crossing all of the "t"s. That's just another way of saying we are answering the question EXACTLY. So if you are answering the question exactly and the two processes are only similar, then it can't be the same technically.

I can give you an example of this. You may own a Honda automobile and your neighbor may own a Rolls-Royce. Both are cars (automobiles) but technically they are not the same.

A second example:
You may have $999,000 dollars in your pocket. In real dollars (and life) you are rich but technically you are not a millionaire although most people would call you a millionaire

No, precipitation and crystallization are not technically the same processes, although they are related. Let me explain:

Precipitation refers to the formation of solid or liquid particles from the atmosphere, which then fall to the ground. It occurs when the concentration of a substance in a solution exceeds its solubility limit, causing it to come out of solution and form solid or liquid particles. This can happen due to changes in temperature, pressure, or concentration.

On the other hand, crystallization is the process by which a substance forms a solid crystal structure from a liquid or gas phase. It involves the orderly arrangement of the constituent molecules, ions, or atoms to form a highly organized solid structure. Crystallization typically occurs when a solution or melt is cooled or evaporated, causing the solute to come together and form a crystal lattice.

While precipitation and crystallization both involve the formation of solids from a solution, they differ in terms of the driving force behind the process and the resulting structure. Precipitation occurs when the solubility limit is exceeded, leading to the formation of particles that may not have a regular crystal structure. In crystallization, the substance systematically arranges itself into a highly organized crystal lattice.

So, while there are similarities between precipitation and crystallization, they are distinct processes with different mechanisms and outcomes.