Sure, but if you look at an extremely old building and find signs of fire only from its very early age, it's somewhat strange to say that it was very likely to catch fire.
What if you could only tell if the building had ever caught fire and how long ago it first caught fire? You can't tell how many times it caught fire, or when the last time was, or how many times it almost caught fire but didn't, or if it would've caught fire later but only didn't because it had already caught fire before.
What if you could only tell if the building had ever caught fire and how long ago it first caught fire? You can't tell how many times it caught fire, or when the last time was, or how many times it almost caught fire but didn't, or if it would've caught fire later but only didn't because it had already caught fire before.