1. A method of executing tasks in a computing device, comprising implementing a first operator for selective enforcement of intertask execution dependencies, comprising: commencing execution of a first task via a first thread of a thread pool in the computing device; identifying whether there exists a second task ready for execution such that an operation of the second task identifies the second task as either being dependent on the first task finishing execution or being selectively dependent on the first task finishing execution; identifying whether there exists a third task ready for execution such that an operation of the second task identifies the second task as either being dependent on the third task finishing execution or being selectively dependent on the third task finishing execution; commencing execution of the second task via a second thread of the thread pool only after determining that the third task has finished execution in response to identifying that there exists a third task ready for execution such that an operation of the second task identifies the second task as being dependent on the third task finishing execution; determining whether to enforce the selective dependency of the second task on the third task by determining whether one or more enforcement conditions are satisfied in response to identifying that there exists a third task ready for execution such that an operation of the second task identifies the second task as being selectively dependent on the third task finishing execution; ignoring the selective dependency, and commencing execution of the second task via a second thread of the thread pool in response to determining that the one or more enforcement conditions are met; and commencing execution of the second task via a second thread of the thread pool only after determining that the third task has finished execution in response to determining that the one or more enforcement conditions are not met, enforcing the selective dependency.