I have a question for science. question: why are most cells so small?
( what keeps them from growing so large)​

hmm. my best answer is gravity. but its just a best guess.

Cells are small so that material can cross the cell membrane fast enough. When a cell grows too large it will divide into smaller cells so cell division keeps cells from growing too large.

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.