discuss how external factors can sometimes affect the realisation of your dreams
Answers
What if our brains are more susceptible to external electromagnetic interference while we sleep? Maybe some of our dreams are directly affected by particles hitting our brain cells, activating all kinds of signals. Perhaps part of the telepathy is unintended signaling that occurs in our dreams?
This might explain why couples or family members share similar dream topics and can relate to one another's experience. This may also explain why sometimes you get weird inconsistencies in your dream, which might be nothing more than your neighbor jamming you with his/her own brain radiation. Perhaps, it's all those neutrinos. Perhaps it's synaptic resonance.
Or maybe we suffer from bad cellphone reception?
Lot of external factors including sound, temperature, scent can influence your dreams.