My house is oldAround 115 years oldIt is a large stone house with 9 bedrooms, two kitchens, three floors, a small elevator, and basementThe windows are as old as the house: beautiful old wooden windows, with glass that has very faint waves in itThey come in a variety of unique shapes and sizes of all sortsIf I were to replace this with doubl- paned modern windowsWhat kind of price are we talkin' about?
You're doggone right it wouldThis is the theme of hundreds of books and articles (even movies) each yearThere is an old children's verse which begins with For want of a nail (to keep a horse shoe on; For want of the shoe, the horse fell - and verse goes on and on ending with a military victory for an invading armySome of these books and articles go into actual historical happeningsThe librarians at any town, city or college library will probably let you check out two or three of these books or magazine articles.
There is no way to solve that question, logically speakingIt is a paradoxIf you changed something in the past, all its effects wouldn't be noticeable for anyone, since for them nothing would have changedAn annoying philosopher discussed that, I can't remember who, sadly, maybe Foucault or Derrida.
No, but you can change the present which in turn will make some sort of change in the future.
Since the fabric of time connects all events, past, present, and future, a simple change could change the futureUsing your example: if you moved the chair/rock, someone, a child say, could trip and fall, hitting their head against somethingDue to this head trauma, they have cranial hemorrhaging, and eventually dieBecause they died as a young child, instead of reaching adulthood and procreating, they landed in a graveTherefore, a boodline that could have come from them may now not emergeThis blood line could even be the one that produced youTherefore, you would not existSo a simple change could produce a major resultHowever, this is a very dramatic example.
Your current windows are wavy because of leaded glassIt is highly desirable to people who are restoring older homes so selling it on Ebay could defray the cost of your new windows which will be about $200.00 each depending on where you live and how big they are.
