I have been trying to understand how the tRNA transporting the correct amino acid required by the ribosome reaches the ribosome. The only way I can imagine this happening is that all types of tRNA+amino acid reach the ribosome, bombard the ribosome, and the ribosome will 'accept' only the one that matches what it is waiting for.
I can not imagine any other mechanism in the cell's cytoplasm that will somehow filter or push the correct tRNA+amino acid and move it towards the ribosome that needs it.
How do we explain this mystery?