There is project called Large Bitcoin Collider which uses the hashing power of involved folks for finding collision. Currently LBC is capable to generate on average up to 90Mkeys/sec. Please, have a look on their trophies so far:
-snip-
The probability to find collision with LBC is vanishingly small, but...there is always a but.
Those "trophies" are specifically created from private keys with a very small search-space.-snip-
The probability to find collision with LBC is vanishingly small, but...there is always a but.
e.g.: starting from 0x01, 0x03, 0x07.... 0x236fb6d5ad1f43 (#54) and higher ranges.
They were merely bruteforcing private keys starting from 0x01 to their target range of the puzzle transaction (link) to match the same private key used by the creator of the puzzle.
It has nothing to do with collision.
Yeah, looks like they are now focused on private keys bruteforcing but, as they stated, finding collision is among LBC priorities
Quote from: https://lbc.cryptoguru.org/about
Probably they didn't find any collision so far (at least they didn't prove it) but this doesn't mean they are not (or will not be) working on this task.
The aim of my previous post was to show that there are some crazy ppl who put their efforts on finding collision.
Or maybe they are not crazy, who knows:
retrospectively, the probability of your coming-into-being is equal to almost zero, but despite of this, you are typing on this forum.