Apologies if this comes across all patronising
not intended that way, as I appreciate that not everyone here reads or writes English as their first language, and that inspite of society's best efforts not everyone can read and write fluently. Hell, even little old me had to retake my GCSE English language, and even then I barely scraped a C grade
Anyways...
"How it can fly whilst carrying so much shite is beyond me." Statement, bourne out by word order and closing with a full stop.
"How can it fly whilst carrying so much shite?" Question, bourne out by the use of a question mark at the end. This question might then be quantified with a statement such as, "It is beyond me."
English is a funny old language consisting mostly of Norse, German, French, Arabic, Gaellic, Latin and Bretan? Not necessarily in that order and not allowing for the Americans/Mr Jobs either
Had the example question been written in Spanish, it would have been started with an inverted question mark... ¿Como... ? so that the reader would instantly recognise it as a question.
Picking holes in peoples spelling, punctuation and grammer isn't on. Not that there's much excuse for not ending sentences with some sort of punctuation and starting them with a capital letter, as this makes things easier to read. Also if you rely on predictive text, turn it off. Assuming of course that Mr Jobs will let you