Black is Black

That's kind of like saying we can't tell if there's a 800 pound black gorilla walking around in a dark room. And that's not even getting into the matter of Hawking radiation.

The posted GIF should be a clue.

We know that black holes exist; we have detected black holes - one black hole is right at the center of our galaxy. This implies that there is a way to detect black holes, so the statement is $\boxed{\text{False}}$

Black holes can be detected using gravitational lensing (shown in the attached GIF); looking for X-ray sources ( black holes emit a lot of X-ray radiation ), and mass estimates from objects orbiting a black hole or spiraling into the core . $_\square$

Its called gravitational lensing. Black holes can bend light coming from distant stars and hence the area in the night sky map surrounding a black hole looks distorted. The GIF given with the problem itself demonstrates the effect.

gravitational lensing, hawking raditaion(caused when the matter - antimatter pair gets seperated by absorption of one of them at the event horizon and emission of other), super heated gas jets ejecting from it, and those gravitational waves created when 2 of them collide (though detecting it was really tough) all are the means we used to detect that a black hole do exist. there may be many things i have missed.

if you are invisible people will still se your footsteps or if you hold something

Black hole is like a eater it eat energy and when it overdo eating this energy releases from black hole in the form of radiation energy known as quiza which govens its presence.

Light isn't the only way we can detect things. black holes can be detected by the behavior of matter around it.

we can detect a Black hole by observing It's affect on Space around it. If you look at the black hole, Time and space is warped around it.

Even if black hole doesn't reflect light ,however it radiates huge amount of thermal radiation as well as a lot of ultraviolet rays and x rays. Such powerful radiation is detected by gravitation lensing, which enables us to detect the presence of black holes.

you can still see it because it is darker than space (maybe...)

Since Black Holes are invisible to the naked eye, we could use observatories around the world to track how black holes move and how 2 black holes combine to make an even bigger black hole helps find out this mystery.

true light cannot escape a black hole but we can still detect it

Anything that enters the black hole is trapped forever. Not even light can escape a black hole so it is dark and we can not see it. Say light is you who are swimming in a river that ends in an enormous waterfall. As you go along it gets faster even though you can not see the waterfall yet. You could swim to safety and you reach the point of no return. Nothing can escape a black hole waterfall when it comes too close.

gravity bends light but radiation is coming out witch we can detect it with technolgy nowadays

Thanks to equations, we can predict nearly everything that we won't approach in our cosmos .

Black holes can be detected, because of the effect n their surroundings. Gravity is an effect caused by the curving of 3d space- 1d - time by an object of mass. And Black holes have a amazingly huge amount of mass concentrated into and even more amazingly small volume. This high density causes space-time to warp, incredibly. Because of this, light passing the black hole is bent towards it, giving the appearance of falling towards it, causing a gravitational lense effect. Hence how you could detect it with your eyes. Other than that there is the super hot glowing disk formed by gas falling into it; giant stars being slung around it like toys, at unbelievable velocities; and x-ray detection, and if it's an supermassive one in whats called a quasar, (an active galaxy), you'll know it by the beam of light (particles) being blasted from the center of said active galaxy, and will look like the lights they use at parties and night clubs. But it's not that kinda light.

We know that mankind has detected black holes..(lol)