A childhood belief about special powers

I used to believe that if you jumped off your bed and flapped your arms efficiently you had to be capable of achieving lift and could thoretically, yet briefly, sustain flight over your bedroom.

Unfortunatley, this only worked a few times in my dreams and the actual realtime simulation attemps accumulating around age 9 were unfortunately completely unsucessfull....I started exercising more after that because I calculated that I (my body) was the only possible reason my attempt at flight had failed this time...(next" part II - I did it - my room looks so big from up here! :> )