'as something goes' what does it mean?
As technology goes, telephones are thought to be quite simple.
As lectures go, it was very interesting.
As teaching goes, no one beats him.

What do the sentences mean with as ____ go(es)? I checked it on Merriam-Webster dictionary, and it is said ' used to compare someone or something with someone or something else of the same kind.'

But, with the definition, doesn't the phrase need something else to compare? And actually, to begin with, I just failed to how to use the word.

Anyone to help me find out the definition of the phrase and how to use ( preferably with a example by your own? )

Question

'as something goes' what does it mean?
As technology goes, telephones are thought to be quite simple.
As lectures go, it was very interesting.
As teaching goes, no one beats him.

What do the sentences mean with as ____ go(es)? I checked it on Merriam-Webster dictionary, and it is said ' used to compare someone or something with someone or something else of the same kind.'

But, with the definition, doesn't the phrase need something else to compare? And actually, to begin with, I just failed to how to use the word.

Anyone to help me find out the definition of the phrase and how to use ( preferably with a example by your own? )

Answer

As technology goes, telephones are thought to be quite simple.
(It means that compared to everything in the world, phones actually are complicated, however, in the realm of technology they are simple devices, because other technology is far more complicated than phones.)
As lectures go, it was very interesting. ( meaning that the writer may think that many things, such as music, sports, or art are the most interesting things to him. The writer may even hate lectures, but he is saying compared to other lectures this particular lecture is interesting to him. 
As teaching goes, no one beats him. ( the teacher might be bad at everything else, but he is the best at teaching)

Answer

There are many kinds of technology, such as computers, cars, telephones, etc. They're all quite complicated, but if you compare them with each other and find out that telephones are among the simplest, you can say, "As technology goes, telephones are thought to be quite simple." You're comparing telephones with other forms of technology.